Industrial elevator shaft with red warning lights in Half-Life Decay mod

Half-Life: Rally is perhaps the most unusual mod for Half-Life, which takes Half-Life to a completely new level — now instead of weapons, the main tool becomes a car and the ability to outrace competitors. The goal is simple: be the first to cross the finish line using speed, tactics, and strategy.

Global Crisis is a mod for Yuri's Revenge inspired by Tiberian Sun and Tiberian Dawn. Using the most modern development tools, the mod tells a story about the modern world and contemporary military conflicts involving real countries and their armies in an apocalyptic world engulfed in chaos due to Tiberium and humanity's actions.

Unreal Redux is a fan-made remake of Unreal from 1998 with improved graphics, effects, and gameplay, preserving the atmosphere of the original while adding new levels, interactions, and secrets on the planet NaPali.

REDS OVER WORLD — a massive total conversion for Doom 2 that transports the player to an alternate Cold War where the world plunges into World War III. 3 factions, 30 missions across 6 continents, gameplay in the spirit of Far Cry and Call of Duty, armored vehicles, special forces, sabotage, and large-scale battles create the right atmosphere.

Tiberian Sun Factions is a mod for C&C Tiberian Sun that primarily adds two new factions to the game - Civilian Defense Force (CDF) and Computer Assisted Biologically Augmented Lifeform (CABAL).