Russian roulette, a simple yet lethal game. Load one bullet into the cylinder of a magnum, spin the cylinder, place it against your head. If a clicking sound is heard, congradulations that you didn't die. Yet if the round loaded was what you pulled, sucks to be you. That's russian roulette for you.
The idea is to have a magnum that looks like a natural weapon, it should have an initial reload of dropping one bullet in a six cylinder compartment and then rolling it into the revolver, you could fire it normally increasing the chance of shooting the round, percentages would start at 16%/6, 20%/5, 25%/4 and so on. However the real use of the gun would come in place when you right click, which will aim at your character's head.
Thanks for reading.
