6: Receiver
This one doesn’t simulate anything military, but oh boy does it ever simulate a gun. Firing guns in shooter games is a fairly simple affair usually. Point and shoot. Not with Receiver. Take out the magazine, replace the bullets, put the magazine back in, cock the hammer right and turn the safety off and THEN you might be ready to get a few shots off. Maybe. If you didn’t forget anything. Receiver is a procedurally generated game with few real objectives, but the focus is indeed on the gun simulation. And as such it is quite successful. And a pain in the butt.