Riddick: The Merc Files is a top-down view mobile stealth-action game, developed by Gaming Corps and Vin Diesel's company Tigon Studios. 

The game has 16 stages and every stage has 3 objectives: Escape, Takedown and Fetch. There are several mechanics in the game. Sneaking behind covers and in shadows. You can stealthily take down enemies behind their backs. You can take their guns and hide their bodies. There is a points system in the game, but it's called Bounty. There is a tutorial at the beginning of the game teaching each mechanic. It also has a trailer of Riddick (film).