Good concepts and mechanics so far, have played for about a week. Quite slow at first but it does pick up after a couple of rebirths. Not sure what other comments said but most mechanics persist and later on you can make almost everything persist via skill tree.

It's quite hands off and works offline which is a big positive for me you can just bookmark it and open the website every few hours to check it no need to keep it on or anything. You only need to be active at the start of a new rebirth. After you unlock some automation you can pretty much check it once a day though and it's fine.

I have yet to unlock all the mechanics so i can't talk about the longevity of it (judging for the skill tree it looks like it will last at least a few months). Overall it's a pretty good idler with slowish progression and no need to check on actively, if you like that style of game.