Half-Life 2 - Zombie Panic Source v1.25b Client
The basic idea of the Zombie Panic is to create solid game play that is based on a classic zombie outbreak scenario. The living dead are coming for the last remaining humans, and these survivors must fight them off and live through the day. But you are able to play as both survivors or the zombies themselves!

Unreal Tournament 3 - The Haunted Mod v1.2
The Haunted is a fast paced third-person horror-action game mod for Unreal Tournament 3 which can be played in singleplayer against AI monsters or in multiplayer, where one player is the haunted and the other players control and spawn the enemies. How long can you survive the endlessly spawning undead hoards?

Elder Scrolls IV: Oblivion - Haunted House beta v1.05
At the First Edition, in the Imperial City Market District, you will find a book named "Diary of a dead man". It tells the horror a rich manor owner has lived. Unfortunately, the story remains blurred and you will have to investigate the manor to find out what really happened. Beware! Once you enter the haunted house, terrible things will happen to you. You will discover the existence of a secret guild and... Well, I can't tell you more... You will have to discover it by yourself.

Postal 2 - Eternal Damnation Mod
Eternal Damnation is a Postal 2 mod that dares to ask the question: Do spilled intestines and a creepy atmosphere make up for shoddy gameplay and a totally lacking narrative? Answer: Heck no! This mod was so good that the Postal 2 developers actually picked it up and included it in an official compilation expansion pack for the game!

Half-Life 2 - The Hidden Mod v4b Beta
This is an all-against-one multiplayer mod for Half-Life 2 in which one player is invisible, equipped only with a knife and grenades, and everyone else is a gun-toting marine charged with hunting him down. Being a marine is conducive to wildly twitchy paranoia, while being the Hidden is mischievous joy. In this mod being in a squad of fully armed marines against a lone knife wielding enemy can still be horrifying when you can't see your adversary, and the lines between predator and prey become blurred.

Grand Theft Auto: Vice City - Long Night Zombie Mod
The GTA: Long Night mod creates an entirely new game set in the familiar locale of Vice City, utilizing the incredibly popular GTA engine to portray a city under siege by hordes of the walking undead. The storyline revolves around multiple survivors making their way to the last human stronghold, where they share tales of zombie chaos across over twenty original missions and cutscenes.

Half-Life - They Hunger Trilogy
You're a writer who saw some success in the past but is now struggling to complete your latest work. Your publisher rents you a house in the country and you are on your way there to rest, write, and recoup. During the course of your drive the relaxing radio music is broken by a hurried announcement, "This is BMRF radio bringing you a special news report! Unknown atmospheric phenomena have been reported throughout the area. Meteorologists have been unable to identify the source of the strange electrical displays but we will keep you informed of any developments. We return you now to our regular programming". "... ah, probably nothing", you think. Get the Steam patch here.

Doom 3 - Zombie Slayer Mod Demo
Zombie Slayer is a Doom 3 mod that incorporates gameplay from games like Dragon's Lair and Shenmue, but with a twist -- you have three chances to successful input the correct key. Fail three times, and you are dead. The story: You are John McAllen, a mercenary hired for an outpost on Mars. You have been awoken from an alarm: Zombies have overrun the base. Now you and some other survivors must escape with your lives. A chainsaw zombie. A constant internal struggle between survivors. Infection. How will this end? The mod is split up into four chapters. Each chapter has a gameplay segment and a storyline segment.

Unreal Tournament 2004 - Killing Floor v2.5
This is the definitive cooperative survival horror mod for Unreal Tournament 2004. Play as part of a squad of soldiers, attempting to survive a horrific onslaught. Use weaponry, wits, and teamwork to overcome hopeless odds. And see if you have what it takes to survive ....on the Killing Floor.

Half-Life - Afraid of Monsters: Directors Cut
Your name is David Leatherhoff, and you're addicted to a new painkiller from a company unknown. They keep coming, and you can't stop taking them. Lately you have started to experience illusions, dreams picking at your deepest and darkest fears. Finally, you go to the Hospital, seeking help. First, however, you make a stop into the bathroom, where another bottle of pills awaits you, standing out like a beacon in the night in your depraved eyes. When will it all stop?