The science fiction horror-themed first-person shooter game
Rise of the legend on windows phone.

All levels available for free on Hardest Skill Mode (without saves and with Ads)
Try Complete game with only one life - Great Challenge

Super Shotgun from D2 available in Cheats Menu - special gift for those who bought earlier and played

Desktop version:
Use arrow keys or WASD of keyboard for movement
С and V - view at left/right
E - open doors
Space - shoot
M or Tab - open/close map
+/- zoom in/out

Supported X360 gamepad
For mobile and tablet look in settings "View Control"
Zoom In/Out - left and right top corners of screen

For mobile device
Hardware camera button support - use it for shooting

If you have a problem - use twitter or e-mail with subject Doom