After you sign up, sometimes the database can be slow to create your account. You just have to either wait or reopen the game and it should work
This is required for now for tier checking and bot protection. Also, the game is single player while having an online aspect, which is because of a few things.
Firstly, you can play it cross platform on any of the platforms provided. Secondly, there will be updates to the game without you having to redownload it every time. And third, you may see some multiplayer stuff come around sometime.
With all that said, a few things to check:
- Are you using your patreon email?
- Are you connected to the internet?
- Did you allow any antivirus to block the game's internet capability?
If none works, I can delete your account, as it was only halfway created - it doesn't have any player data currently.