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Source 2 is a 3-D video game engine created by Valve in 2015 as a successor to Source. It has been used in Dota 2 and The Lab. There are plans to port Counter-Strike: Global Offensive to the engine in 2017.
- Lower latency and more responsive input.
- Increased performance limit to take advantage of higher end hardware.
- Improved audio and voice processing.
- New in-house physics engine, Rubikon.
- Native OpenGL support on all platforms.
- New authoring tools, rebuilt from the ground up.