30 Nov 09 Half life 1 – non steam

Revolutionary first-person action game features unique mix of action and adventure elements and stunning technological enhancements to licensed Quake engine.
Widely regarded as the "The best PC Game ever"!
Visually stunning 1st person shooter.
The coolest monsters and creatures.
A more cerebral challenge than most shooters – puzzles exploration, and a disaster to avert.
Support up to 8 players in head-to-head Internet/LAN play mode.
A multitude of unique environments and arenas to explore and interact in.
Unique weaponry and nuclear arsenals.