Controls

while in any of the games, press p to open the pause menu

First Person Shooter

WASD to move, c to crouch, Space to jump. E to interact.
Mouse to point, left mouse to shoot.
you can perform a wall grab by crouching in the air while near a wall.
To switch to a weapon, press the corresponding weapon slot, these are:
machine gun - 2
Shotgun - 3
RicochetGun - 5
(you need to grab the gun from the ground before being able to switch to it)

Turn Based Tactics

WASD to move the camera.
Right Mouse to Select a square and left mouse to issue orders.
Space to pass your turn.