Dark vertical shafts in Half-Life Vertigo Mod showing narrow concrete beams

FlatOut 2 Verbose LUA Errors — a debug mod for FlatOut 2 that reports script errors with a description of the cause of the failure.

Apotheosis X is a total conversion of Marathon Infinity built on the Aleph One engine. An gripping story-driven campaign of 8-12 hours awaits you on the planet Fenris, featuring 23 massive levels, new weapons and enemies, intense combat, and an atmosphere inspired by Alien and Blade Runner.

Diffusion is a large-scale total conversion of Half-Life on the Xash3D FWGS engine, which creates its own world unrelated to the original game. The mod impresses with a large amount of weapons, modern graphics and effects, as well as engaging puzzles and atmosphere.

REBELLION: Brutalized - an adaptation of the Rebellion mod for Brutal Half-Life. The game features some weapons and items from Brutal Half-Life, as well as soldiers armed with M4A1, M249, and sniper rifles.

Fallout: Tame The Wastes is a total conversion for Civilization IV: Beyond the Sword where you build empires in the Fallout universe. Take control of one of 10 Wasteland factions and lead it to dominance through weapons, power armor, espionage, and diplomacy. Over 100 technologies, units, and buildings.