Source 2
Source 2 is a 3D video game engine 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.
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.
- 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
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Products using Source 2
Valve
Products made by Valve.
Released
- 2015 Dota 2 – Originally using Source, ported to Source 2 in 2015.
- 2016 SteamVR Performance Test – Non-interactive version of the Robot Repair demo
- 2016 Robot Repair – Included in
The Lab - 2016
Destinations – Replaced by SteamVR Home - 2017 SteamVR Home
- 2018
Artifact – The Dota Card Game - 2019
Dota Underlords - 2020 Half-Life: Alyx
- 2022
Aperture Desk Job
Unreleased
This section are for unreleased Valve games that are not publicly released or is in Beta/Early Access.
- 2023 Counter-Strike 2
Third-Party
Products made by third-party companies and mod teams.
Released
- None
Unreleased
This section are for unreleased 3rd party games that are not publicly released or is in Beta/Early Access.
- TBA S&box
Tools
- Dota 2 Workshop Tools
- SteamVR Workshop Tools
- Half-Life: Alyx Workshop Tools
- Source 2 General Discoveries