A free program for Android, by Moriarty inc..
The Case Simulator for Standoff 2 is a unique game that simulates trade activity in marketplaces - most specifically, the opening of cases or boxes, trading items in the market, accomplishing missions or tasks, crafting rare items, and other marketplace operations. Test your luck, explore the locations, and prank your friends if you want to!
Other features include: 3d models, the chance to obtain skins from random drops, the ability to control prices and trade, a crafting system, viewable profile and statistics, operations and operatives, high quality sound and visual effects, immersive graphics, and so much more.