All screen shots are from the demo.
All the 3D models were free/cheap models purchased from different web sites.
The demo is currently running on a server so you could meet up with other testers.
Damage is turned off.

KEYS:

Standard movement keys: W,A,S,D
Left mouse shoots
Hold right mouse to move your view
X = shoot/release grapple
Space = jump
Press ESC while playing to rebind the keys.

Download the demo