It crossed my mind about that but seeing his post count and the time on the platform, and that it is from the kickstart and etc, etc.
It's amazing how a game like Raft is... free here
Viewing post in For those of you who think this is a virus/fake/copy!
This is free early prototype/demo of commercial game Raft. The full game is currently in Early Access on Steam:
https://store.steampowered.com/app/648800/Raft/
Raft never had kickstarter or other crowd funding campaign. It was originally a school/hobby project by 3 Swedish university students during their final year in the university in 2016 - 2017. It became so popular that the three decided to turn it into a commercial game after graduation.
https://raft-game.com/presskit.html
Plenty of people have copied the concept since, especially on mobile, but this is the original prototype that started it all.