As Ryoko said, my only qualms are the lack of ammo and the mono-texturing. keep the flickering lights, though. Makes it harder to shoot, I like that. To make it less annoying, you should probably lower the rate of the flicker. Really fun though, good job!
An underwater map built in and around a scaled-up generator.
You'll need to do some swimming here; set your run key to something easy to reach if you haven't already.
Psycho Physics file:
*Movement is quicker underwater.
*All weapons fire underwater.
*Fusion Pistol fires safely underwater.
---NEW---
*All shots, including monsters' shots, will now fire underwater.
*The S'pht will not float to the top of the map. Instead, their "jump" height is left at it's highest.
The latter additions were made to make Psychomanteus more compatible with the Survival.Lua script. Enjoy.