I’m planning to turn off the server for the web version on October 29th. If you’re in the middle of a game there, I recommend finishing up soon!
If you can’t afford to move to the Steam version, never fear; the Itch version is Pay What You Want, and that includes free.
If you’re on Mac, I’ll be looking at doing a port after the release crunch dies down. Mobile users, I’m sad to say, are entirely out of luck. Sorry about that.