Valve announces Source 2, their first new game engine in 11 years

Valve has finally taken the wraps off their brand new game engine, Source 2, at GDC 2015. As a successor to the original Source engine that launched

Counter-Strike 2 is already a blast - and lays the groundwork for years to come

Counter-Strike 2 Has Officially Launched on Steam, Replacing CS:GO

A Complete History of Valve: Founding, Hits, and Failures - History-Computer

Source 2 - Valve Developer Community

The release of CS:GO Source 2: When will it arrive?

Counter-Strike 2 is now available and free to play on Steam for PC gamers

After 11 years, Star Citizen's spin-off is feature complete, and a 26-minute trailer shows everything from Mark Hamill to a Half-Life 2 gravity gun

The Power Behind Video Games: A Look at Game Engines, by Paul Buttle, We The Players

Rumor: Counter-Strike 2 Runs On Source 2, Announcement Imminent - Gameranx

Source 2 (officially) announced; Valve say it'll be “free” to developers

Valve announces Source 2 engine, free for developers - Polygon

Counter-Strike 2 Trademark Suggests New Game in the Works

Counter-Strike 2 officially confirmed by Valve in a series of developer diaries

Source 2 was released 2 years ago, but Source 2 for developers is still nowhere in sight : r/Steam

Valve quietly releases Source 2 engine, Source 2 version of Dota 2, and new Hammer map editor