TFBot Technicalities

Not to be confused with tf_bot (entity page).

TFBots are NextBots used in Team Fortress 2 officially for Mann vs. Machine, training modes, and also competitive in the event that a player leaves before the match completes.

In Mann vs. Machine, 22 slots are reserved for TFBots to use, leading to the recommendation of 32 maxplayers for servers hosting Mann vs. Machine games.

Skill / Difficulty

Bots behave based on the skill value (or difficulty) they have, which can be set through tf_bot_difficulty or with tf_bot_add. Skills are defined in game as follows:

• Easy (0)
• Normal (1)
• Hard (2)
• Expert (3)

Todo: Summarize behaviors based on skill value.

Combat

TFBot has a tf_bot_taunt_victim_chance chance to perform a taunt upon killing an enemy.

Bots will stay in combat until:

• They have less than 20% max ammo left.
• They need to do a full reload and they are Hard or Expert bots.
• Their friend score is lower than the foe score.
• Their health percentage is lower than tf_bot_health_critical_ratio.

Bots will search for health kits and dispensers when their health is lower than tf_bot_health_ok_ratio or they are on fire, they are not in combat, and a healer is not healing them already. The range that bots will hunt for health in is

   searchRange = tf_bot_health_search_far_range + (current health / max health) * (tf_bot_health_search_near_range - tf_bot_health_search_far_range );

Bots won't try to get health in the Mann Vs. Machine gamemode.

Threat Level

Confirm:Does this mechanic still exist?

Threat levels are scores used to determine how dangerous something is. This value is between 0 (no danger) and 1 (immediate danger). The following actions give a certain threat level:

Threat	Value
Enemy (Class)	Varied
Übered enemies	1
Level 3 Sentry	1
Level 2 Sentry	0.8
Level 1 Sentry	0.6
Enemies further than tf_bot_sniper_personal_space_range units from a Sniper	0

Typically the threat level is stored in two variables: the friend score and the foe score. These scores are determined through accumulating the threat level of every visible known ally and enemy respectively. Bots will try to retreat if the friend score is lower than the foe score.

Class Info

TFBots will change classes in spawn with tf_bot_reevaluate_class_in_spawnroom 1, and upon death through tf_bot_keep_class_after_death 0.

Rosters

ClassSelectionInfo is a structure that determines the conditions for selecting a class.^[4] The conditions for selecting a class can be the minimum team size, the player rate, minimum and maximum amount of the class.^[4]

Rosters are ClassSelectionInfo arrays that determine how TFBots choose each class.^[4]

There are 3 predefined rosters that are used if tf_bot_spawn_use_preset_roster 1 is set; the offensive roster, the defensive roster, and competitive roster for competitive game modes.^[4]

Offense Roster

				Limits
Class	Team Size Threshold	Player Rate	Minimum Amount	Easy	Normal	Hard	Expert
Scout	0	0	1	3	3	3	3
Soldier	0	0	0	None	None	None	None
Pyro	0	0	0	2	3	3	3
Demoman	3	0	0	None	None	None	None
Heavy(weapons)	3	0	0	1	1	2	2
Engineer	5	0	0	1	1	1	1
Medic	4	4	1	1	1	2	2
Sniper	5	0	0	0	1	1	1
Spy	5	0	0	1	1	1	1

Defense Roster

				Limits
Class	Team Size Threshold	Player Rate	Minimum Amount	Easy	Normal	Hard	Expert
Soldier	0	0	0	None	None	None	None
Pyro	3	0	0	None	None	None	None
Demoman	3	0	0	2	3	3	3
Heavy(weapons)	3	0	0	1	1	2	2
Engineer	0	4	1	1	2	3	3
Medic	4	4	1	1	1	2	2
Sniper	5	0	0	0	1	1	1
Spy	5	0	0	0	1	2	2

Competitive Roster

				Limits
Class	Team Size Threshold	Player Rate	Minimum Amount	Easy	Normal	Hard	Expert
Scout	0	0	0	0	0	2	2
Soldier	0	0	0	0	0	None	None
Pyro	0	-1
Demoman	0	0	0	0	0	2	2
Heavyweapons	3	0	0	0	0	2	2
Engineer	0	-1
Medic	1	0	1	0	0	1	1
Sniper	0	-1
Spy	0	-1

Scout

Info

Preferred Weapon	Primary
Threat Value	0.6
Medic Bot Priority	None

Soldier

Info

Preferred Weapon	Primary
Threat Value	0.8
Medic Bot Priority	2nd

Soldier bots prefer their primary weapon in combat, but will switch to their secondary if they are out of primary weapon ammo and the threat is closer than 500hu.

Pyro

Info

Preferred Weapon	Primary
Threat Value	1
Medic Bot Priority	3rd

Pyro bots are normally offensive and will attack enemies with their primary weapon. However if the enemy is further than 750hu, the bot Pyro will equip its secondary weapon.

They airblast enemies that are closer than tf_bot_pyro_shove_away_range hammer units to the bot pyro, and projectiles if they are visible to the pyro bot and are within tf_bot_pyro_deflect_tolerance angles (in radians) relative to the Pyro bot's FOV. The chance that they will airblast a projectile depends on their skill level.

Skill Level	Chance to Airblast
Easy	0% chance
Normal	50% chance
Hard	90% chance
Expert	100% chance

Demoman

Info

Preferred Weapon	Primary and Secondary
Threat Value	0.6
Medic Bot Priority	4th

Demoman bots fire their primary weapon in an arc. The angle they fire grenades is tf_bot_ballistic_elevation_rate × v, v being the distance to the target as a normalized vector. They will not fire with their primary above 45° or 0.79π.

When they encounter Sentries, Demoman bots prefer their secondary over their primary and stack stickybombs on the Sentry to then detonate them.

They will sometimes set up sticky-bomb traps on nav areas where they predict the enemy will pass through. The amount of stickybombs they place is tf_bot_stickybomb_density × the area of the target nav area which will always be ≥1. Demoman bots will stop setting up their trap if they see an enemy that is less than 500hu away.

Heavy

Info

Preferred Weapon	Primary
Threat Value	0.8
Medic Bot Priority	1st

Heavy bots prefer to use their primary weapon when in combat. They will "rev" (hold right click) for at least three seconds if they see an enemy.

They are the most preferred patient to be healed by Medic bots, out of the other classes.

Engineer

Info

Preferred Weapon	Melee and Primary (for combat)
Threat Value	0.4
Medic Bot Priority	None

Engineer bots focus on building near sentry spots (func_tfbot_hints with hint KV set to 1). Engineer bots normally just stay around their sentry and constantly hit it with their wrench. If the engineer bot get attacked however, they will attack with their weapon and flee.

Note:Engineer bots will not switch to another class if their Sentry or Teleporter Exit is up, regardless if tf_bot_reevaluate_class_in_spawnroom or tf_bot_keep_class_after_death is set.

In Mann Vs. Machine Engineer bots will not attack, unless if they're marked as a squad. They can only build Sentry Guns and Teleporters, and they build around groups of bot_hint_engineer_nests, bot_hint_sentryguns, and bot_hint_teleporter_exits, rather than func_tfbot_hint's.

Teleporters

Non-Medic bots will normally prefer to take active teleporters over walking to the destination, but they will only take them when their incursion distance is less than 350hu + the teleporter area's incursion distance. However Medic bots will only take the teleporter if it's patient also goes through the teleporter; otherwise they ignore teleporters.

Note:TFBots will not use Teleporters and Dispensers in MvM by design.

Medic

Info

Preferred Weapon	Secondary
Threat Value	0.2
Medic Bot Priority	None

Medic bots passively heal patients that are in their current viscinity, and will follow their patient when they are between tf_bot_medic_stop_follow_range and tf_bot_medic_start_follow_range from them. They will respond to call for medic from human players that are within tf_bot_medic_max_call_response_range units from the medic bots.

They prefer to heal ally heavies, soldiers, pyros, and demomen over the other classes. If the medic bot is in a squad, they will only heal the squad leader. In the training gamemode, medic bots will always stay on the human player.

If Medic bots have the vaccinator equipped, they will use their über when they or their patient have taken damage. Otherwise medic bots will use their über when:

• The patient's health ratio is less than 0.5.
• The patient is not already übered.
• The medic bot's health is less than 25, 50, or bot_medic_uber_health_threshold attribute.

Bug:Due to an oversight where CTFBotMedicHeal::IsGoodUberTarget( CTFPlayer who* ) always returns false^[1], non-übered medic bots will not stick to their current patient regardless if they have über ready.^[2]

Confirm:Does this still happen in game?

  [todo tested in?]

In MvM medic bots will not attack, unless if marked to be part of a squad in the popfile.

Sniper

Info

Preferred Weapon	Primary
Threat Value	0.4
Medic Bot Priority	None

Sniper bots typically look around for up to tf_bot_sniper_spot_max_count Sniper Spots, which are hint-0-func_tfbot_hints in MvM^[confirm] or nav areas outside MvM, that are at least tf_bot_sniper_spot_epsilon units away from adjacent sniper spots and attack from those areas; they search for tf_bot_sniper_spot_search_count sniper spots per update frame. However if an enemy gets close to them, the Sniper bot will fight them and then try to retreat to their goal. If the threat is closer than 750hu, then Sniper bots will use their secondary weapon.

When aiming through their primary, Sniper bots choose a target part to hit based on their skill level and take 0.5 to 1.5 seconds to adjust their aim. An error angle between ±π and error radius between 0 and tf_bot_sniper_aim_error is then applied to their aim.^[3] Expert and Hard bots always aim for the head, normal bots aim between the head and body (specifically ⅓ of the head's z position), and easy bots just aim for the body. If Sniper bots have the Huntsman equipped, then they will fire in an arc affected by tf_bot_arrow_elevation_rate, and aim for the same body parts.

Sniper bots will stay tf_bot_sniper_spot_point_tolerance units away from an enemy capture point, while they'll stay within this range in an ally capture point.

Spy

Info

Preferred Weapon	Primary and Melee
Threat Value	0.6
Medic Bot Priority	None

Spy bots typically lurk around hiding spots.^{[game/server/tf/bot/behavior/spy/CTFBotSpyInfiltrate::Update]} They prefer to use their melee weapon if the target is closer than tf_bot_spy_knife_range units to the spy. If their target is further than tf_bot_spy_change_target_range_threshold units away, Spy bots will choose another target that is closer than that distance. They will attempt to attack the back of an enemy (or backstab) at an angle based on the difficulty of the bot.

They are suspected by enemies if they collide with an enemy for more than tf_bot_suspect_spy_touch_interval consecutive seconds.

When sapping a building. If a spy bot is less than 300HUs from the sap target; they will not dodge enemies.^{[5: game/server/tf/bot/behavior/spy/tf_bot_spy_sap.cpp]}

Console Variables and Commands

To skip to the next section (Bot Names), click here.

Server Management

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_add	[count|name] [class] [team] [skill] ["noquota"]	strings (processed without order)	Creates a bot with specified parameters. This entity will borrow from tf_bot_difficulty if skill is omitted. Bug:When red bots are added in MvM withoutnoquotaspecified, bots will constantly spawn forever.  [todo tested in?] Fix:Set tf_bot_quota 0.
tf_bot_auto_vacate	1	0 disables, 1 enables	Whether bots will automatically leave to make room for human players.
tf_bot_difficulty	1	integer	Sets default skill value.
tf_bot_join_after_player	1	0 disables, 1 enables	If nonzero, bots wait until a player joins before entering the game.
tf_bot_keep_class_after_death	0	0 disables, 1 enables	If zero bots will change class upon death, except in MvM.
tf_bot_kick	[name|"red"|"blue"|"all"| "moveToSpectatorTeam"]	string	Kicks bots based on name and team, or all of them. Will instead move bots to spectator mode if moveToSpectatorTeam is added.
tf_bot_kill	[name|"red"|"blue"|"all"]	string	Kills bots based on name and team, or all of them.
tf_bot_prefix_name_with_difficulty	0	0 disables, 1 enables	Append the skill level of the bot to the bot's name
tf_bot_quota	0	arbitrary integer	Determines the total number of tf bots in the game.
tf_bot_quota_mode	normal	string	Determines the type of quota; allowed values: 'normal', 'fill', and 'match'. Given N is tf_bot_quota, in 'fill' mode, adjust bots to maintain N players; in 'match' mode, maintain a 1:N ratio of humans to bots.
tf_bot_reevaluate_class_in_spawnroom	1	0 disables, 1 enables	If set bots will opportunistically switch class while in spawnrooms if their current class is no longer their first choice.
tf_bot_spawn_use_preset_roster	1	0 disables, 1 enables	Bot will pick classes based on a preset class table. Bug:After the 22nd bot, bots will run out of classes to automatically pick and stay in the class selection forever.  [todo tested in?]

Global Behavior

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_always_full_reload	0	0 disables, 1 enables	Determines whether bots perform full reloads before firing.
tf_bot_ammo_search_range	5000	Hammer units	How far bots will search to find ammo around them.
tf_bot_capture_seek_and_destroy_max_duration	30	arbitrary float	If a capturing bot decides to go hunting, this is the max duration he will hunt for before reconsidering.
tf_bot_capture_seek_and_destroy_min_duration	15	arbitrary float	If a capturing bot decides to go hunting, this is the min duration he will hunt for before reconsidering.
tf_bot_choose_target_interval	0.3f	Seconds (float)	How often a bot can reselect his target
tf_bot_defend_owned_point_percent	0.5	arbitrary float	Stay on the contested point we own until enemy cap percent falls below this value.
tf_bot_defense_must_defend_time	300	arbitrary float	If timer is less than this value, bots will stay near point and guard.
tf_bot_fire_weapon_min_time	1	arbitrary integer	Minimum time bots will fire their weapon.
tf_bot_health_critical_ratio	0.3	arbitrary float	TFBots that have health ratios below this value are considered "critically injured".
tf_bot_health_ok_ratio	0.8	arbitrary float	TFBots that have health ratios below this value are considered "ok".
tf_bot_health_search_far_range	2000	Hammer units	Critically-hurt bots will search for health within this range.
tf_bot_health_search_near_range	1000	Hammer units	Uncritically-hurt bots will search for health within this range.
tf_bot_hitscan_range_limit	1800	Hammer units	Maximum range in which bots will try to hit targets with hitscan.
tf_bot_max_point_defend_range	1250	Hammer units	How far (in travel distance) from the point defending bots will take up positions.
tf_bot_melee_attack_abandon_range	500	Hammer units	If threat is farther away than this, bot will switch back to its primary weapon and attack
tf_bot_near_point_travel_distance	750	Hammer units	Range in which bots are considered to be "near" the point.
tf_bot_notice_gunfire_range	3000	Hammer units	The range in which gunshots are noticed by bots.
tf_bot_notice_quiet_gunfire_range	500	Hammer units	The range in which quiet gunshots are noticed by bots.
tf_bot_offense_must_push_time	120	arbitrary float	If timer is less than this, bots will push hard to cap
tf_bot_offline_practice	0	arbitrary integer	Tells the server that it is in offline practice mode, and also disable achievements.
tf_bot_path_lookahead_range	300	Hammer units	How far a bot should look ahead.
tf_bot_retreat_to_cover_range	1000	Hammer units	How far to search for cover.
tf_bot_taunt_victim_chance	20	arbitrary float	1/value chance for a bot to taunt after killing a bot.
tf_bot_wait_in_cover_max_time	2	arbitrary float	Maximum time bots will hide in cover.
tf_bot_wait_in_cover_min_time	1	arbitrary float	Minimum time bots will hide in cover.
tf_bot_warp_team_to_me			Teleports all ally bots to !activator.

Debugging

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_debug_ammo_scavenging	0	0 disables, 1 enables	Draws debug informaton for bot ammo-information.
tf_bot_debug_destroy_enemy_sentry	0	0 disables, 1 enables	Draw debug info for bots trying to destroy sentries.
tf_bot_debug_retreat_to_cover	0	0 disables, 1 enables	Draw debug info for bots retreating to cover.
tf_bot_debug_seek_and_destroy	0	0 disables, 1 enables	Draw bot seek-and-destroy debug info.
tf_bot_debug_stuck_log	[blank by default]	string	Given a server logfile visually display bot stuck locations.
tf_bot_debug_stuck_log_clear			Clear currently loaded bot stuck data.
tf_bot_debug_tags	0	0 disables, 1 enables	ent_text will only show tags on bots.
tf_bot_defense_debug	0	0 disables, 1 enables	Draw defense areas.
tf_bot_fire_weapon_allowed	1	0 disables, 1 enables	If zero, bots will not pull the trigger of their weapons (but will act like they did).
tf_bot_force_class	[blank by default]	string	If set to a class name, all bots will respawn as that class.
tf_bot_force_jump	0	0 disables, 1 enables	Force bots to continuously jump.
tf_bot_melee_only	0	0 disables, 1 enables	If nonzero, bots will only use melee weapons

Class Specific

Pyro

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_pyro_always_reflect	0	0 disables, 1 enables	Pyro bots will always reflect projectiles fired at them. For tesing/debugging purposes.
tf_bot_pyro_deflect_tolerance	0.5	Radian (float)	Defines the visible range in which Pyro bots can airblast projectiles. Technical explanation: Pyro TFBots will not airblast a projectile if the dot product between their normalized vector and a projectile's normalized vector is higher than the negative of this value.
tf_bot_pyro_shove_away_range	250	Hammer units	If a Pyro bot's target is closer than this, then compression (or air)blast them away.

Demoman

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_ballistic_elevation_rate	0.01	arbitrary float	When lobbing grenades at far away targets, this is the degree/range slope to raise our aim.
tf_bot_max_grenade_launch_at_sentry_range	1500	Hammer units	Demoman bots will try to launch grenades at sentries in this range.
tf_bot_max_sticky_launch_at_sentry_range	1500	Hammer units	Demoman bots will try to launch stickies at sentries in this range.
tf_bot_sticky_base_range	800	arbitrary integer	Demoman bots will charge their stickies if their target sentry is further than this range.
tf_bot_sticky_charge_rate	0.01	arbitrary float	Seconds of charge per unit range beyond base.
tf_bot_stickybomb_density	0.0001	arbitrary integer	Number of stickies to place per square inch. (squared hammer unit)

Engineer

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_debug_sentry_placement	0	0 disables, 1 enables	Draw bot engineer sentry placement debug info.
tf_bot_engineer_building_health_multiplier	2	unknown type	Unused.
tf_bot_engineer_exit_near_sentry_range	2500	Hammer units	Maximum travel distance between a bot's Sentry gun and its Teleporter Exit
tf_bot_engineer_max_sentry_travel_distance_to_point	2500	Hammer units	Maximum travel distance between a bot's Sentry gun and the currently contested point
tf_bot_engineer_retaliate_range	750	Hammer units	Engineer bots will attack if the attacker who destroyed sentry closer than this, otherwise the engineer bot will retreat.
tf_bot_min_teleport_travel	3000	Hammer units	Minimum travel distance between teleporter entrance and exit before bot will build one.
tf_bot_max_teleport_entrance_travel	1500	Hammer units	Don't plant teleport entrances farther than this travel distance from our spawn room
tf_bot_max_teleport_exit_travel_to_point	2500	Hammer units	If an offensive engineer bot's tele exit is farther from the point than this, then destroy it.
tf_bot_teleport_build_surface_normal_limit	0.99	Hammer units	If the ground normal Z component is less that this value, Engineer bots won't place their entrance teleporter.

Medic

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_medic_cover_test_resolution	8	arbitrary float	Determines the angular increment when scanning for players to heal.
tf_bot_medic_debug	0	0 disables, 1 enables	Draw debug info for medic bots.
tf_bot_medic_max_call_response_range	1000	Hammer units	Calls for medic within this range will be heard.
tf_bot_medic_max_heal_range	600	Hammer units	Bot medics will heal anyone within this range.
tf_bot_medic_start_follow_range	250	Hammer units	Medics will start following their patients when in this range.
tf_bot_medic_stop_follow_range	75	Hammer units	Medics will stop following their patients when in this range.

Sniper

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_arrow_elevation_rate	0.0001	Arbitrary float	When firing arrows at far away targets, this is the degree/range slope to raise our aim.
tf_bot_debug_sniper	0	0 disables, 1 enables	Draw Sniper bot debug information.
tf_bot_sniper_aim_error	0	Hammer units	Margin of error in sniper aim radius.
tf_bot_sniper_aim_steady_rate	10	aribtrary float	Determines the angle rate at which the bot aim becomes steady.
tf_bot_sniper_allow_opportunistic	1	0 disables, 1 enables	If set, Sniper bots will stop on their way to their preferred lurking spot to snipe at opportunistic targets.
tf_bot_sniper_choose_target_interval	3	Seconds (float)	How often a zoomed-in Sniper can reselect his target. Note:Currently unused.
tf_bot_sniper_flee_range	400	Hammer units	Sniper bots retreat if their threat is closer than this range.
tf_bot_sniper_goal_entity_move_tolerance	500	Hammer units	How far a sniper spot can be from the point before being ignored.
tf_bot_sniper_linger_time	5	arbitrary float	How long Sniper will wait around after losing his target before giving up.
tf_bot_sniper_melee_range	200	Hammer units	Sniper bots will attack with melee if their threat is closer than this range.
tf_bot_sniper_patience_duration	10	arbitrary float	How long a Sniper bot will wait without seeing an enemy before picking a new spot.
tf_bot_sniper_personal_space_range	1000	Hammer units	Enemies beyond this range don't worry Sniper bots.
tf_bot_sniper_spot_epsilon	100	Hammer units	Maximum distance between sniper spots to consider them one spot.
tf_bot_sniper_spot_max_count	10	arbitrary integer	Stop searching for sniper spots when each side has found this many.
tf_bot_sniper_spot_min_range	1000	Hammer units	Minimum length for a sightline to be considered usable.
tf_bot_sniper_spot_point_tolerance	750	Hammer units	The range in which a sniper can stand near a vantage point.
tf_bot_sniper_spot_search_count	10	arbitrary integer	Search this many times per behavior update frame.
tf_bot_sniper_target_linger_duration	2	arbitrary float	How long a Sniper bot will keep toward at a target it just lost sight of.

Spy

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_debug_spy	0	0 disables, 1 enables	Draw Spy bot debug information.
tf_bot_notice_backstab_chance	25	arbitrary integer	Chance for bots to notice backstabs.
tf_bot_notice_backstab_max_range	750	Hammer units	Maximum range in which bots will notice backstabs.
tf_bot_notice_backstab_min_range	100	Hammer units	Minimum range in which bots will notice backstabs.
tf_bot_spy_change_target_range_threshold	300	Hammer units	Spy bots will change to newer targets if their current target is further than this range.
tf_bot_spy_knife_range	300	Hammer units	Spy Bots will prefer their knife if their threat is closer than this range.
tf_bot_suspect_spy_forget_cooldown	5	arbitrary integer	How long to consider a suspicious spy as suspicious.
tf_bot_suspect_spy_touch_interval	5	ticks (integer)	How many ticks back to look for touches against suspicious spies.

Mode Specific

Flag-based modes

Includes Capture the Flag, Special Delivery, Mann vs. Machine, etc.

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_formation_debug	0	0 disables, 1 enables	Draw bot-formation debug info.
tf_bot_flag_escort_give_up_range	1000	Hammer units	Bots will give up escorts at this range.
tf_bot_flag_escort_max_count	4	arbitrary integer	Maximum amount of escorters allowed.
tf_bot_flag_escort_range	500	Hammer units	Bots will escort the flag carrier within this range.
tf_bot_flag_kill_on_touch	0	0 disables, 1 enables	If nonzero, any bot that picks up the flag dies. For testing.
tf_bot_fetch_lost_flag_time	10	arbitrary float	How long until busy bots drop what they're doing and get the dropped flag.

Mann vs. Machine

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_mvm_bot_flag_carrier_interval_to_1st_upgrade	5	Seconds (float)	The time before the bomb carrier performs the 1st upgrade.
tf_mvm_bot_flag_carrier_interval_to_2nd_upgrade	15	Seconds (float)	The time before the bomb carrier performs the 2nd upgrade.
tf_mvm_bot_flag_carrier_interval_to_3rd_upgrade	15	Seconds (float)	The time before the bomb carrier performs the 3rd upgrade.
tf_bot_squad_escort_range	500	Hammer units	If a bot is using a melee weapon, close and attack while staying near the leader within this range.

Engineer

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_engineer_mvm_hint_min_distance_from_bomb	1300	Hammer units	Bot engineers will move if the bomb is within this range.
tf_bot_engineer_mvm_sentry_hint_bomb_backward_range	3000	Hammer units	How far the MvM bot engineer can build backward.
tf_bot_engineer_mvm_sentry_hint_bomb_forward_range	0	Hammer units	How far the MvM bot engineer can build forwards.
tf_bot_mvm_show_engineer_hint_region	0	0 disables, 1 enables	Show the nav areas MvM engineer bots will consider when selecting sentry and teleporter hints.

Sentry Buster

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_suicide_bomb_friendly_fire	1	0 disables, 1 enables	Sentry Busters can kill ally bots on its team.
tf_bot_suicide_bomb_range	300	Hammer units	Sentry Busters will kill players in this range and start detonation in a third of this value.

Payload

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_cart_push_radius	60	Hammer units	Maximum distance in which bots will stay within near the payload to push it.
tf_bot_debug_payload_guard_vantage_points	0	0 disables, 1 enables	Draw vantage points for guarding the payload.
tf_bot_payload_guard_range	1000	Hammer units	Guard the payload within this range.

Miscellaneous

bot_npc_archer

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_npc_archer_arrow_damage	75	arbitrary float	Determines the arrow damage of NPC archer arrows.
tf_bot_npc_archer_health	100	arbitrary integer	Determines the health of NPC archer bots.
tf_bot_npc_archer_shoot_interval	2	arbitrary float	Determines the interval at which NPC archer bots fire.
tf_bot_npc_archer_speed	100	arbitrary integer	Unused.

Unused

Cvar/Command	Parameters or default value	Descriptor	Effect
tf_bot_escort_range	300	Hammer units	Raid mode leftover; Bots would've escort anyone within this range if there are no enemies.
tf_bot_min_setup_gate_defend_range	750	Hammer units	An unused ConVar that is supposed to determine how close from the setup gate(s) defending bots can take up positions and what areas would have been determined to be "in cover".
tf_bot_min_setup_gate_sniper_defend_range	1500	Hammer units	An unused ConVar that supposedly would determine the distance from the setup gate(s) a defending sniper would go to "take up position".
tf_bot_max_setup_gate_defend_range	2000	Hammer units	An unused ConVar that would have determined how far from the setup gate(s) defending bots can take up positions.
tf_raid_engineer_infinte_metal [sic]	1	0 disables, 1 enables	Cheat ConVar that allows engineer bots to gain 1000 metal each update during Mann Vs. Machine. It is development only.

Bot Names

To go back up to the previous section (ConVars/ConCommands), click here.

The following 4 columns of bot names are what the game uses to randomly set a bot name when creating a bot.

Chucklenuts CryBaby WITCH ThatGuy Still Alive Hat-Wearing MAN Me Numnutz H@XX0RZ The G-Man Chell The Combine Totally Not A Bot Pow! Zepheniah Mann THEM LOS LOS LOS 10001011101 DeadHead ZAWMBEEZ MindlessElectrons TAAAAANK!

The Freeman Black Mesa Soulless CEDA BeepBeepBoop NotMe CreditToTeam BoomerBile Someone Else Mann Co. Dog Kaboom! AmNot 0xDEADBEEF HI THERE SomeDude GLaDOS Hostage Headful of Eyeballs CrySomeMore Aperture Science Prototype XR7 Humans Are Weak

AimBot C++ GutsAndGlory! Nobody Saxton Hale RageQuit Screamin' Eagles Ze Ubermensch Maggot CRITRAWKETS Herr Doktor Gentlemanne of Leisure Companion Cube Target Practice One-Man Cheeseburger Apocalypse Crowbar Delicious Cake IvanTheSpaceBiker I LIVE! Cannon Fodder trigger_hurt Nom Nom Nom

Divide by Zero GENTLE MANNE of LEISURE MoreGun Tiny Baby Man Big Mean Muther Hubbard Force of Nature Crazed Gunman Grim Bloody Fable Poopy Joe A Professional With Standards Freakin' Unbelievable SMELLY UNFORTUNATE The Administrator Mentlegen Archimedes! Ribs Grow Back It's Filthy in There! Mega Baboon Kill Me Glorified Toaster with Legs

Unused Bot Names

The following bot names were found in a leaked source code version of TF2, containing bot names that were never put into production for unknown reasons.

• John Spartan
• Leeloo Dallas Multipass
• Sho'nuff
• Bruce Leroy
• CAN YOUUUUUUUUU DIG IT?!?!?!?!
• Big Gulp, Huh?
• Stupid Hot Dog
• I'm your huckleberry
• The Crocketeer

Code References

• ^[1] - game/server/tf/bot/behavior/medic/tf_bot_medic_heal.cpp:CTFBotMedicHeal::IsGoodUberTarget(CTFPlayer *who)
• ^[2] - game/server/tf/bot/behavior/medic/tf_bot_medic_heal.cpp:CTFBotMedicHeal::SelectPatient(CTFBot *me, CTFPlayer *current)
• ^[3] - game/server/tf/bot/behavior/tf_bot_behavior.cpp:CTFBotMainAction::SelectTargetPoint(const INextBot *meBot, const CBaseCombatCharacter *subject)
• ^[4] - game/server/tf/bot/tf_bot.cpp:CTFBot::GetNextSpawnClassname()

See also

• tf_bot
• 'TFBot skill levels explained in excruciating detail' - By Sigsegv
  
• 'MvM - Advanced Popfile Techniques' - By Mince and 8 other collaborators