Hey all!
This question was coming up a lot, so here is a sticky topic that will explain how to use the game's website or play on the executable / browser version of the game outside of Steam, after getting the game on Steam.

To login to the forum:

• Run the game from Steam
• Open the in-game 'Player panel' (Shortcut 'P') and click your avatar
• You will be logged in to the website automatically, and can now post on the forums / change your avatar / manage your account

To play the game on the executable or browser version:

• While logged-in on the website, go to the 'Profile' tab and set your email
• After setting the email, set up a password to your account here: https://game.belowkryll.com/web/password_restore/
• Now with your password and account name you can login to the game via the executable or browser version.

Rejoice!

(Notice: The browser version may have a lower performance then the executable or Steam version of the game).