Sky Obby: Mine Parkour

One wrong jump and you drop into the void. First-person parkour across islands floating in a blocky sky. Sprint to clear wide gaps and leap from island to island. Miss a landing and you respawn at your last checkpoint instead of the start, then retry the hard part. Some checkpoints unlock by watching an ad. The game tracks your time, attempts and checkpoints, so there is always a run to shave down and a record of your own to beat.