| R-Type | side scrolling shoot-em-up arcade game |
| Railroad Tycoon | Strategy |
| Realms | Action |
| Redhook's Revenge | Pirate-themed board game |
| Return to Castle Wolfenstein | 3d Shooter |
| Return to Castle Wolfenstein: Enemy Territory | First-person shooter |
| Rise of the Triad | First-person shooter |
| Robot Battle | Programmatic Robotic Combat |
| Robotron 2084 | Arcade |
| Ryzom | MMORPG |
