I see all these people sayin g the game wont work and stuff, first off, early access, its still a WIP, and also, I havent had any problems myself, sandbox or creator. Its either a you problem, or just trying to make it look bad.
I tried the launcher again and it worked, downloaded and installed correctly, runs fine. It just took me literally like 50 attempts to get it to download fully. It's a problem that some people have and I didn't know who's end the problem was on. I still don't. I just know that it worked for me eventually and I haven't had any issues since it installed.