They Hunger: Trilogy 25th Anniversary Patch

The Last Goodbye — A large-scale and atmospheric total conversion for Half-Life, where the player explores dangerous districts of the city of Prava, encountering colorful villains, from the cunning Mercutio to the formidable yet stylish crime boss Franz Jaeger, as well as various giant monsters.

Half-Life: Zombie Edition - a unique mod where you play as a zombie or headcrab in the Half-Life world, featuring a mutation system, three classes, and upgrades. This perspective from the enemy's side, the one you used to fight against, makes the gameplay unlike anything else.

Stronghold HD - Winter Mod is a modification that uses new textures to replace the summer season in Stronghold with winter. Snow-covered lands and buildings create the atmosphere of a cold medieval era, giving the game a fresh perspective.

A fan-made port of the early alpha version of Half-Life to the classic GoldSrc engine, featuring updated maps and content.

Addon that improves the sound design of Brutal Half-Life v3: weapon sounds have become more brutal and realistic, replacing the previously more cartoonish ones.