Half-Life Sudden Invasion mod shows empty hazardous suit in containment chamber

Half-Life eXperiment - a story mod for Half-Life where you find yourself in an experimental research complex with unconventional map design: narrow corridors, labs with unusual architecture, and scenes built to maintain tension. Less large open spaces, more claustrophobia and survival.

Cat Life: GS - a mod for Half-Life that allows you to look at the game world through the eyes of a furry hero. You play as cat XFC-71, known as Newton, who became the subject of scientific experiments. After the incident at Black Mesa, he finds himself at the center of events, facing mutated creatures and military forces.

Uncapped Handicap AI - a mod that reworks the handicap system file of FlatOut Ultimate Carnage so that bots become faster and don't play easy with you if you fall behind them.

Half-Life: Urbicide is a mod with 11 atmospheric maps for single-player gameplay. The events take place during the Xen invasion of Earth. You take on the role of Bruce, a warehouse manager trapped inside a building with a colleague, while his fiancée Rebecca attempts to rescue him.

Red Alert 2: Yuri's Revenge - Begin Disasters is a mod for Yuri's Revenge with a new single-player campaign for Allies and Soviets, reworked balance, improved AI, and new units and buildings.