How to play

Never played a 1993-style shooter? Ten minutes from now you will be strafing around corners.

Controls

ActionKeyboardTouch
MoveW A S DOn-screen pad
AimMouse (click screen to lock)Drag is not supported — keep aiming simple
FireLeft mouse / CtrlFIRE button
Use / open doorsE or SpaceUSE button
RunShiftRUN button
MenuEscEsc via keyboard or reload

Your first five minutes

  1. Start on E1M1 Outer Prison. Walk with WASD, look around with the mouse (click the screen once to lock the pointer).
  2. Pick up everything that glitters: health kits, armor, ammo. It all matters.
  3. Melee-punch the first zombies to save bullets if you feel brave — or just shoot.
  4. Colored doors need matching keycards; explore side rooms to find them.
  5. The level ends at a big exit switch. Hit E next to it, watch your time, and try the daily challenge next.

Stay alive

  • Never stand still while shooting. Strafe (A/D) side to side.
  • Melee-range monsters hurt most. Back away from worms, keep shooting.
  • Barrels explode. Shoot them when monsters stand near, never when you do.
  • Save your big ammo (rockets, cells) for the tank-like monsters — see the monster guide.
  • Secret walls often look slightly different. Find them for free gear.