Detailed Civilization IV world map with Caveman2Cosmos mod terrain and labels

Patch for the They Hunger mod that uses new features from HL 25th Anniversary and adds a new menu, loading screen, fonts, animated logo, and much more.

Solitary Echoes is a total conversion of Half-Life set in the Aliens universe. You play as an engineer at LV-513 base, which is under attack by xenomorphs. Having hidden in a maintenance room, the protagonist decides to venture outside after weeks to fight for his life, find help, and discover the truth about what happened.

USS Darkstar is a cult mod for Half-Life where you find yourself aboard a "Zoological Research Vessel" studying alien creatures. It all starts as a routine scientific mission, but eventually escalates into a tense adventure in the confined space of a spaceship full of unexpected threats.

Zombie Panic! is a multiplayer mod for Half-Life where you and your friends are survivors, and one of you becomes a zombie. Every time a survivor gets killed, they resurrect as a zombie and join the hunt for the rest. Ammunition is limited, so you can't just spray bullets everywhere - you have to conserve and work as a team.

Counter-Life is a Half-Life mod that combines Half-Life's story campaign with weapons and purchasing system from Counter-Strike.