The Case Opener Ultimate - Offline is a free offline simulator game that will allow you to play as a secret agent that will have to open the cases in CS:GO.

This game is a simulator that is meant to be played as a joke, so all the weapons that you can get here cannot be used in CS:GO. This is a free game with many different weapons.

The gameplay is based on the idea of opening the cases, which will require you to find the keys. As you play the game, you will be able to buy new weapons, and you will be able to fight in different modes.