Realms of the Haunting is a point-and-click first-person shooter developed by Gremlin Interactive way back in 1996! The forces of darkness broke out! They were kept safely behind Seven Seals throughout history, yet now, for the first time ever, the safety of the planet is at risk! Defeat monsters in an array of universes that span from modern times to medieval worlds and bring safety back to the world!

Realms of the Haunting is a first-person adventure/shooter game developed by Gremlin Interactive. The 3D engine used in this game was borrowed from Gremlin's own Normality. ...   more on Wikipedia

System Shock 2 Steam Key GLOBAL is a game released on 2000-08-11. Published by Nightdive Studios.

System Shock 2 is a first-person shooter action role-playing survival horror video game for Microsoft Windows, Apple OS X and Linux. The title was designed by Ken Levine and co-developed by Irrational Games and Looking Glass Studios. Originally inten ...   more on Wikipedia

Serious Sam 3: BFE is an action shooter developed by Croteam. If you want action and some action on top of that action and then more action to follow, Serious Sam 3 will do you justice. The legions of alien beasts, monsters, and mercenaries are invading earth, and it seems to be the final showdown that’ll decide who’ll handle the Earth In the upcoming future. Stand your ground and hold down your trigger, the swarms of beings are rushing in and it’s up to you to stop them all! Forget cover, strategical positioning, and retreat, Serious Sam is too serious for that king of nonsense.

Serious Sam 3: BFE is a first-person shooter video game developed by Croteam and published by Devolver Digital. It is part of the Serious Sam series and a prequel to The First Encounter. The game's story takes place in the 22nd century, during Mental ...   more on Wikipedia