The game reached its peak player count, and I don't think anyone else will want to buy it. It would be great if someone could play the game I created with so much love, which is why I want it to be free. I want to wholeheartedly thank those who bought it, because thanks to them I was able to fund my other game, Rembrunir. As for the state of the game, I think that's it. At most, I can add a new boss and features like changing the volume, but that will take time. Honestly, my game is as I wanted it to be.
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If you bought the game before it went free to play, you can claim your DLC to always start with 100 lives.