All you need for a fun time is a browser, some stealthy patience and a bit of free time
Terry Cavanagh, the creator of VVVVVV and Super Hexagon, strikes again with a compact and polished pixel-art stealth game about coin acquisition.
On a mechanical note Tiny Heist is stealth game with all the extra weight trimmed off. Sneaking up on guards, disabling security cameras and the like are all a one button affair handled trough movement. Navigating the randomly generated levels themselves is very similar to Desktop Dungeons, as everything in the level moves at the same time the player does.
There are lots of small added complexities that provide the game with some depth when it all comes together. But don't take my word for it, see for yourself. If you prefer a downloadable version rather than a browser one, you can grab one here.