Use WASD or Arrows to move, Shift to run, Space to jump, X to crouch, F to deploy items, P to pause, LMB to shoot, RMB to zoom, R to reload, the mouse wheel to switch weapons, L to lock the cursor.
Cave War is a survival game in which you are kidnapped. Your mission is to escape by destroying all of the enemies in a man-made underground chamber. With the available knife and some guns that you collect while roaming, you are able to cause damage to the others without difficulty. However, you must defend yourself to survive before you win. Aside from weapons, remember to search for ammo and reload promptly. Each kill will help you increase the chance to succeed. Good luck!