Redemption games are arcade games that reward depending of the skills of the player.
Most redemption games reward the player in the form of tickets, wich he can change at the counter of the arcade. But with some games like the famous claw crane the player can get a reward directly from the game. Most prices are cheap simple things like candy or small toys, but sometimes these can be exchanged for larger things.
The last few years it is more and more common to have a redemption game like a claw machine in a personal gameroom or mancave.