The game is hard, but some testers do reached the max cultivation stage for v.0.1 version (which is 7th stage of Qi Condensation). To be fair, I also only managed to reach 6th on my best run. But there are better players than me 😊
Rebirth mechanic is planned, but still far in the future. I am doing this in my spare time. Still need to learn more game design and programming, and add more things to the game before I reach that.