In Slenderman Must Die: Hell Fire, you'll go on a crazy adventure to catch and kill Slenderman.
In each level, you beat the Slenderman by collecting the pages that give you power over him and the ability to send him away. But be careful not to get caught by him, especially now that he has the power of fire.
You can move around with WASD, look around with the mouse, aim and shoot with its buttons, and switch weapons with the mouse wheel. R is for reloading, G is for grenades, F is for picking up items, Shift is for running, CTRL is for crouching, X is for prone, V is for close combat, and Space is for jumping.
Have fun and good luck!