It's a game. Often referred to as "Pokemon but with guns," it has gained tens of millions of users in just the past month. It currently is the #1 game on Steam, and is available on the Xbox or PC. You can fuse, breed, craft, build etc. You can capture pals (the "pokemon") and even humans as well. You can build bases and make any type of guns as well. It's basically survival game, and if you want the game to be easier for you, you can change the settings. Honestly, after trying out the game, I rate it a solid 10/10. It's super fun to play honestly.