Why I Stamp:
Swedish developer Robert Topala created the 2013 mobile and Steam game geometry dash, which was released by RobTop Games. It is a rhythm platformer with over 40 million user-created levels online in addition to the 21 official levels that are currently available. Every level has a different music. In the most recent iterations, additional features include three stores, three secret vaults, a level editor, map packs, user-made levels, secret coins, and a variety of game modes and icons.