Source 2
Quake engine ▶ 
GoldSrc ▶ 
Source ▶ 
Source 2
Todo: This page is not a stub but could use some more detail.
Source 2 is a 3D video game engine currently in development by Valve as a successor to Source.
It is used in 
Dota 2, 
SteamVR Home, 
Half-Life: Alyx, 
S&box, 
Counter-Strike 2, and more.
Source 2 was first made public with the Dota 2 Workshop Tools Alpha in August 6th 2014 and formally announced by Valve in March of 2015 at the Game Developers Conference. It was then implemented into Dota 2 on June 17th 2015. Valve has announced that Source 2 will be released to the public for free, and it will only take money should it be used for commercial products.
The engine is capable of rendering highly complex and well detailed scenes with minimal framerate drops, thanks to its new 64-bit support alongside Vulkan, allowing for better multi-core rendering and more efficient 3D rendering.
Contents
Features
- Integrated asset management via the Asset System.
- New engine-integrated authoring tools, rebuilt from the ground up.
- Completely rebuilt Hammer level editor, featuring modern polygon mesh editing tools.
- Support for both forward and deferred rendering pipelines.
- Lower latency and more responsive input.
- Improved audio and voice processing.
- New in-house physics engine, Rubikon. Includes support for Cloth Simulation.
- Physically based rendering support.
- Support for the Steam Audio sound system.
- WebM video, replacing the previous Bink Video format.
- Enhanced Panorama GUI, designed to be more user friendly.
- Native DirectX 11® and Vulkan® support, with support for Shader Model 5.0 and later.
- 64-bit supported
- Previously, Source 2 also support 32-bit, which has been dropped since Dota 2 (except SteamVR Home).
- Previously, Source 2 also support 32-bit, which has been dropped since
Limitations
Warning:Support for 32-bit, OpenGL, DirectX 9, XAudio, and macOS versions below 10.14 were removed in 2021 with the Dota 2 update. SteamVR Home is not affected. Newer games such as Half-Life: Alyx and Counter-Strike 2 doesn't support them.Warning:Some games like Counter-Strike 2 no longer support Squirrel (initially as of the Limited Test Release), making things non-trivial to port and with no chance of a proper transition period when both implementations are functional.Products using Source 2
Valve
Products made by Valve.
Released
| Year | Title | Developer(s) | Publisher(s) | Platforms | Notes |
|---|---|---|---|---|---|
2015
|
Dota 2
|
Valve | Valve | PC | Originally using Source, ported to Source 2 in 2015.
|
2016
|
SteamVR Performance Test | Valve | Valve | PC (VR) | Non-interactive version of the Robot Repair demo |
2016
|
Robot Repair – Included in  The Lab
|
Valve | Valve | PC (VR) | |
2016
|
 Destinations
|
Valve | Valve | PC (VR) | Replaced by SteamVR Home. |
2017
|
SteamVR Home
|
Valve | Valve | PC (VR) | |
2018
|
 Artifact
|
Valve | Valve | PC | The Dota Card Game. |
2019
|
 Dota Underlords
|
Valve | Valve | PC | |
2020
|
Half-Life: Alyx
|
Valve | Valve | PC (VR) | |
2022
|
 Aperture Desk Job
|
Valve | Valve | PC (Steam Deck) |
Unreleased
This section are for unreleased Valve games that are not publicly released or is in Beta/Early Access.
| Year | Title | Developer(s) | Publisher(s) | Platforms | Notes |
|---|---|---|---|---|---|
TBA
|
Counter-Strike 2
|
Valve | Valve | PC | Supposed to be released in Summer 2023, but it was most likely delayed, as of September. |
Third-Party
Products made by third-party companies and mod teams.
Released
- None yet.
Unreleased
This section are for unreleased 3rd party games that are not publicly released or is in Beta/Early Access.
| Year | Title | Developer(s) | Publisher(s) | Platforms | Notes |
|---|---|---|---|---|---|
TBA
|
S&box
|
Facepunch Studios | Facepunch Studios | PC |
Documentation
See Also
Quake engine ▶ GoldSrc ▶ Source ▶ Source 2
