Steamworld Dig is a mining game with platform elements and cute robot characters. It’s challenging in a few parts – I found myself quitting after being crushed by falling rocks. I enjoyed playing through the game casually, and it took me about 6 hours, but if you’d like to challenge anxest for the world record the time to beat is 22:18, and you can watch the video here https://www.speedrun.com/SteamWorld_Dig/run/mk45j11y. I’m watching it now, and there’s some pretty tricky stuff – go check it out.