The Heist is an interesting puzzle game. You mist complete puzzles in order to disarm a vaults security defenses. There are four puzzle categories. Each catagory has something around 12-15 puzzles and each puzzle you complete, you get an energy thingy (I have no idea what it's called) to add up onto your energy bar. The first stage only allows you to do difficulty 1 games, that only give you 1 energy thingy. But if you do enough challenges you can fill your energy bar. Fill it up and you knock down a security system. There are I think 5 security systems. Lasers, cameras, 50,000 volt bars, bars, and the safe. When you finish an energy bar, it resets, but it unlocks difficulty 2 puzzles. This time, complete THESE and you get 2 energy thingies. It goes all the way up to four, but there are only 2-4 of them.
Now your'e probably saying, "SHADOWSFEAR, I DONT GIVE A forget ABOUT PUZZLE GAMES". Did I mention what's inside the safe? Well, the payoff is WAAAY more than 99¢. You get a full blown loving Steam game. Yeah, any (needs citation) steam game. You get eets. Im not kidding. I'm sad now. Locking this.