Hellbound is a First Person Shooter game in the vein of the classics DOOM, Quake, Duke Nukem 3D, Blood and many others.
It's GROTESQUE! Focused in action, speed and gore.
In this Survival Mode version you fight against hordes of enemies in a small island until you're done.
The game is currently in Closed Beta. You can sign up to get your keycode at the official website, link is on the right side ("Visit the website") -

Minimum:
OS:
Windows 7 and later
Processor:
MD Phenom II X4-945 / Intel Core 2 Quad 6600
Memory:
2 GB RAM
Graphics:
AMD R7 240 GB / Nvidia GT 730 2GB / Intel HD 530
Storage:
4 GB available space
Recommended:
OS:
Windows 7 and later
Processor:
AMD FX-8320 / Intel i5-2400
Memory:
4 GB RAM
Graphics:
AMD R9 290 4GB / Nvidia GTX 770 4GB
Storage:
4 GB available space