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This mod for Source has been released! Download it now.

Mod header css sci fi.jpg
Mission hub - click to enlarge
CS_XMAS by Stormseeker - click to enlarge
DE_FOREST by Robert Briscoe - click to enlarge
DE_STRATOCORP2 by Heyo - click to enlarge
DE_KENIGFOREST by Demalition - click to enlarge


CSS SCI FI 3: Hardwired is a single-player modification for Source. Waking up to find himself an augmented clone of Gordon Freeman, the player must fight time-travelling Combine forces and other enemies across 42 unique and replayable missions.


Missions in CSS SCI FI are set in 18 retail and 24 custom Counter-Strike: Source maps, which are installed intact to the player's CS:S game folder. The mod edits the entity data for each map as it is loaded, adding and modifying entities to create a seamless single-player experience. The maps remain unchanged and are fully playable in Counter-Strike: Source. Maps have been contributed by established designers, including Bluestrike, Schuzak and d00ds.com. Combat locations range from a snow-covered country church to a dense pine forest to a sun-baked tropical island.

Players enter each map through the mission hub and can choose to play each one at a time or all in 3 linked campaigns. Each mission features a series of goals, such as to rescue hostages or destroy targets, which must be completed to move on to the next map or return to the hub. There are multiple approaches to each goal, and in each map the behaviour and armament of enemies and the distribution of resources are randomly determined within defined parameters. Thus, no two plays are the same, making CSS SCI FI a truly replayable single-player experience.

Key features at a glance

  • Single-player.
  • Requires only Counter-Strike: Source.
  • Retains look and feel of Half-Life 2 while adding new weapons, enemies and abilities.
  • Includes a custom mission hub, weapon test range and full configuration utility.
  • Includes 24 custom maps for Counter-Strike: Source.
  • Features 42 replayable non-linear missions, each with multiple goals and hidden secret weapons.


CSS SCI FI also requires the Source SDK base, which is free with CS:S and other Valve games. If the player does not have the SDK base, it will be downloaded automatically through Steam the first time the game is run.


The CSS SCI FI Configuration Utility is included in the mod installation. This program allows users to select and install 48 different game options, each of which may affect the difficulty, graphics, enhancements or gameplay of CSS SCI FI. These options are independent of Half-Life 2's standard in-game graphics and difficulty settings, and can be selected in any desired combination. After the Configuration Utility has been run, players do not need to run it again until they want to change a setting.

The Configuration Utility can be run at any time that the game itself is not running, and can be accessed using the launcher from the desktop or from the mod directory located at SourceMods/CSS SCI FI. For more about the CSS SCI FI Configuration Utility, please see the CSS SCI FI Configuration Reference Manual.

Links and media

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