Deathmatch Classic

Arena Shooter

Genesis Rising

Sci-Fi RTS

Half-Life

Linear FPS

Half-Life 2

Linear FPS

Half-Life 2: Deathmatch

Arena FPS

Half-Life: Blue Shift

FPS

Half-Life: Opposing Force

FPS

Multiwinia

Arcade RTS

Portal

First-Person Puzzler

Quake 4

FPS

Quake II

FPS

Quake III Arena

Arena FPS

Ricochet

Arena Shooter

SiN Episodes: Emergence

Episodic FPS

Space Empires IV Deluxe

4X Strategy

Space Empires V

4X Strategy

X: Beyond the Frontier

Space Simulation

X-COM: Interceptor

Space Combat Strategy

X-COM: UFO Defense

Turn-Based Tactics

X Rebirth

Space Sim

X: Tension

Space Sim