The Legacy: Realm of Terror is described as 'The year is 1993. The protagonist's ancestors, the Winthrops, have obviously dealt with black magic and perhaps even pacts with the demons' and is a Horror Game in the Games category. There are more than 10 games similar to The Legacy: Realm of Terror for a variety of platforms, including Windows, Mac, Linux, Steam and Playstation. The best alternative is Left 4 Dead. It's not free, so if you're looking for a free alternative, you could try SCP: Containment Breach or Cry of Fear. Other The Legacy: Realm of Terror like games are Amnesia: The Dark Descent (Paid), Resident Evil (Paid), Dying Light (Paid) and Dead Island (Paid).
Nightmare Creatures is a survival horror video game released for the PlayStation and PC in 1997, and Nintendo 64 in 1998 as a North America exclusive. It was developed by Kalisto Entertainment and published by Activision.
We got puzzles, as this is an adventure. But this is also a shooter. And it is an RPG (at least in some special moments). This is really unique - and crazy like hell. From the guys that have brought shame to the gaming world with "Anderson & the Legacy of Cthulhu"