Western Roulette

It's a reimagined version of Russian Roulette, where the goal is to be the last man standing.
The chamber has 6 slots.
Only one contains a bullet.
Each round, you can:
Shoot someone else or shoot yourself.
If you shoot someone else, you can give the gun away.
If you shoot yourself, you can shoot again or check the chamber to see where the bullet is. After this, you can give the gun away.

Choose wisely who you want to shoot or give the gun to, because others will remember.
If you give the gun to someone, they'll remember and are more likely to give it back to you.
If you shoot someone, they're more likely to try and shoot you—if you didn't kill them, of course.
The others at the table will shoot and pass the gun in the same way. Maybe they'll team up against someone... and maybe that someone will be you. Play wisely.