100 Doors Classic (also branded as 100 Doors 2017) continues the addictive gameplay of past entries in the series, but also feels fresh and new. The game presents you with 100 doors, aka 100 puzzles to solve. Getting through each door requires different skills, because each door has a different puzzle.

The game starts off pretty easy, but can get difficult later on. If you get stuck, you can find 100 Doors Classic walkthrough videos on Game Help Guru.

For hours of fun and mind-bending puzzles, 100 Doors Classic is worth a download.