It's called RAFT
You can download it directly from their site, or on Steam: https://raft.itch.io/raft
Just thought I'd share this, since it's a pretty cool game and free to play.
Correction: The game is no longer free, it's actually $20 on Steam. Sorry. I might still buy it and make a YouTube video to go with my original video of the game back when it was free: (this link will work in about 2 or 3 hours; the video is still uploading rn)
Correction #2: The game is $19.99 for the early access version which will not cost you more in the future according to the developers as the game grows.
