I can probably get through a few levels at a time before the game either crashes or runs out of memory, thus forcing me to exit the game and restart it. Don't know if it's an issue with my computer or a bug in the game that has yet to be fixed (which is understandable, given that this game is still in early access), but I've had these problems with this game ever since I downloaded it last year. If anybody has any advice, please let me know.