MINERVA
Infiltrate and observe a peculiar little island a few miles off shore
Adam Foster (Minerva HL2 MOD creator) was recruited by Valve to work on the Half Life 2: Episode Three development team ; )

Half-Life 2: Wars
RTS set in the Half-Life universe, with a current focus on singleplayer.

Blue Portals: UP
Blue Portals is a Portal mod that puts the logic and thinking back into Portal

Nightmare House 2
Wake up inside an abandoned hospital haunted by a vague memory of the girl from
Nightmare House.

NEOTOKYO°
Play a visceral and realistic combat shooter in a rich futuristic setting. Set in a fictionalized Tokyo 30 years from now.

Portal: Project-Beta
Project-Beta is a full content mod for Portal. This mod will include, new textures, new models, new particles, and a new story mode. There are 2 Possible endings to the mod. The rest of the information...

Modular Combat
Modular Combat is a role-playing shooter based in the Half-Life universe. There are over 50 modules that can be upgraded at any level, in any combination. Modules give combatants amazing abilities such..

Factum Solus
Take Chell through this alternate universe where GlaDOS has been replace by the AI 'Ben'

Portal Pro
A set of complicated logic based puzzles for you to portal through