Half-Life: Source

Half-Life: Dead Zone is a Half-Life 1 mod from one of the creators of Half-Life: Field Intensity and Half-Life: Induction. You are an ordinary scientist from the Black Mesa research center. After the facility was captured by Black Ops special forces agents, your task is to survive and escape to freedom. The main thing is not to fall into their hand

Pro Gen Mod: Unofficial Extension — an addon for Pro Gen Mod v2.6: Director Cut, which evolved from a Challenge mode update into a major expansion. It fixes bugs, refines generals, adds cut units and features, eliminates crashes on Challenge mode maps, improves balance, AI, and stability.

Diablo The Awakening is an extensive mod for the original Diablo that expands the story after the destruction of Baal and the Worldstone. It adds entirely new monsters and bosses, additional spells, quests, as well as regular and unique items — all with updated affixes and increased difficulty.

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.

They Hunger - a cult horror mod for Half-Life where the player finds themselves in a rural area overrun by a zombie apocalypse. It features three episodes with a dark atmosphere, new enemies, weapons, and sound design.