Source 2

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id Tech 2 id Tech 2GoldSrc GoldSrcSource SourceSource 2 Source 2

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Blank image.pngTodo: This page is not a stub but could use some more detail.
Screenshot of Half-Life: Alyx Half-Life: Alyx, using the Source 2 Engine.
In-game screenshot of de_dust2 de_dust2 in Counter-Strike 2 Counter-Strike 2. It is also the most recent and latest Source 2 Source 2 game to be released.
Another in-game screenshot of Counter-Strike 2 Counter-Strike 2, with the community-made map "Lost Coast by CZXA1", showcasing the graphical capabilities of Source 2, such as Volumetric lighting, 8K textures and lightmaps.
Comparison of de_nuke de_nuke map in Source and Source 2.

Source 2 Source 2 is a 3D video game engine developed by Valve as a successor to Source Source. It is used in Dota 2 Dota 2, SteamVR Home SteamVR Home, Half-Life: Alyx Half-Life: Alyx, S&box S&box, Counter-Strike 2 Counter-Strike 2, and much 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, Direct3D 11, allowing for better multi-core rendering, better graphics and more efficient 3D rendering.



Warning.pngWarning:Support for 32-bit, OpenGL, DirectX 9 (includes Direct3D 9), XAudio, and macOS versions below 10.14 were removed in 2021 with the Dota 2 Dota 2 update. SteamVR Home SteamVR Home is not affected. Newer games such as Half-Life: Alyx Half-Life: Alyx and Counter-Strike 2 Counter-Strike 2 don't support them.
Furthermore, newer games like Counter-Strike 2 Counter-Strike 2 will also require a CPU with SSE 4.2 support.
Warning.pngWarning:Some games like Counter-Strike 2 Counter-Strike 2 no longer support Squirrel, making things non-trivial to port and with no chance of a proper transition period when both implementations are functional.

Products using Source 2 ViewDiscussEdit templatePurge


Products made by Valve.


Year Title Co-developed with Platforms Notes
2015 Dota 2 Dota 2 PC Originally using Source Source, ported to Source 2 Source 2 in 2015.
2016 SteamVR Performance Test PC (VR) Non-interactive version of the Robot Repair demo
2016 Robot Repair – Included in The Lab The Lab PC (VR)
2016 Destinations Destinations PC (VR) Replaced by SteamVR Home.
2017 SteamVR Home SteamVR Home PC (VR)
2018 Artifact Artifact PC The Dota Card Game.
2019 Dota Underlords Dota Underlords PC, Android, iOS
2020 Half-Life: Alyx Half-Life: Alyx PC (VR) First Half-Life game to be released since the release of Half-Life 2: Episode Two Half-Life 2: Episode Two, which was released 12 years prior.
2022 Aperture Desk Job Aperture Desk Job PC (Steam Deck)
2023 Counter-Strike 2 Counter-Strike 2 PC Originally planned to be released in Summer 2023, it was delayed and later released in September 27, 2023. This is a port of Counter-Strike: Global Offensive Counter-Strike: Global Offensive to the Source 2 engine, under it's new name "Counter-Strike 2 Counter-Strike 2", which eventually replaced the original game. Various Counter-Strike: Global Offensive Counter-Strike: Global Offensive maps were removed, while others have been remade from scratch.


This section are for unreleased Valve games / tools that are not publicly released or is in Beta/Early Access.

  • There are currently no unreleased first-party Source 2 Source 2 game.


Products made by third-party companies and mod teams.


  • None yet.

In development/Unreleased

This section are for unreleased 3rd party games that are in development, not publicly released or is in Beta/Early Access.

Year Title Developer(s) Publisher(s) Platforms Notes
TBA S&box S&box Facepunch Studios Facepunch Studios PC (VR) As stated by Garry Newman himself, this is not intended to be a remaster of Garry's Mod, but rather, a spiritual successor. This is also the first time, and only time Source 2 was licensed to third-party developer.


See also