Game: Day of Defeat and Half-Life 2: Deathmatch available for Linux on Steam.

Following the release of Humble Bundle V , Valve henceforth has made Day of Defeat and Half-Life 2: Deathmatch available for Linux on Steam. Both games belong to the team-based multiplayer first-person shooter genre.

For those who unfamiliar, Day of Defeat uses a 2nd World War scenery as a game background and Half-Life 2: Deathmatch takes place in the Half-Life 2 universe.

Note: Both games are based on the Valve's Source engine and can be installed on Linux using Steam.