Valve releases full Team Fortress 2 game code to encourage new, free versions

Valve has released the full Team Fortress 2 game code, allowing modders to make major changes or entirely new versions of the game. This move enables more ambitious projects than previously possible. Valve has also updated several of its classic Source engine games, including Half-Life 2: Deathmatch and Day of Defeat, with modern features like 64-bit support, improved graphics, and better networking. These upgrades bring older games up to date and provide new opportunities for modders and players alike.