But I guess everybody sees his game differently - I found Trem to be a good and at times a little claustrophobic shooter, but still by far not a horror game...
Let me clarify my point : i said "horror movie" because i dont know how to describe songs in English. With the terms "horror movie", everyone got my point and know approximately what kind of music i m waiting for.
Tremulous isn t an horror game, but it is inspired by Gloom...If you dont know Gloom, its a Quake 2 mod which is dark, dark, and...DARK.
However, like Lava_Croft once said, Quake 3 engine makes things "cute". The proportion in models (Battlesuit for example), the lightnings etc... everything looks a bit different than it should be. You can guess that the game is using Quake 3 engine just by looking at it. So this removes a bit of what could have been scary.
But i do think the game is (or at least is intented to be) scary: When a tyrant charges, it is scary (that s why every noob shout "OMG TYRANT" whenever they see one). When you ve got a rifle and no armor, going in a boxes room with many shadows and place to hide for aliens, it is scary.
Thats why i think a scary music would suit Trem.