Source (Half-Life 2 Engine) - 2004

Source Engine is a game engine developed by Valve Software, first used in the 2004 first-person shooter game Half-Life 2.

goldsrc

↓

Source (Half-Life 2 Engine)

Action Half-Life: Source -

Battle Grounds II -

Battle Grounds III -

BrainBread 2 -

Codename CURE -

Contagion -

DMC:R -

Day of Defeat: Source -

Dino D-Day -

Double Action: Boogaloo -

Dystopia -

Empires -

Eternal Silence -

E.Y.E: Divine Cybermancy -

Firearms: Source -

Fistful of Frags -

Garry's Mod -

Garry's Mod v9 -

Golden Eye: Source -

Gunman Chronicles -

Infestus -

Insurgency: Modern Infantry Combat -

IOSoccer -

Jabroni Brawl: Episode 3 -

JBMod -

Kingdoms Collide -

Master Sword: Rebirth -

Modular Combat -

NEOTOKYO -

No More Room in Hell -

Nuclear Dawn -

Obsidian Conflict -

Obsidian Conflict (MOD) -

OccupationCS -

Open Fortress -

Orion: Source -

Smashball -

Source SDK Base 2006 -

Source SDK Base 2007 -

Source SDK Base 2013 Multiplayer -

Synergy -

Zombie Master (CLASSIC) -

Zombie Master: Reborn -

and 25 more...

↓

Source 2 (Half-Life: Alyx Engine) (2015)