Solid execution, interesting gameplay, a few addictive hours of fun. A worthy brother of "A dark room". I liked it and I really hope it's completed someday. Yet it's much more than a "demo". It's just a game without an ending.

I'm adding some comments for the game developer. Extension doesn't mean "much to correct".

Few tweaks / words for the wise:

1. The game doesn't auto-save before the "final fight". Exit before creating the "Soul". I lost all of my morning of progress and won't be coming back for this. I had fun. But not enough to repeat the final grind for the "end". For it's still a grind, and very much not worth it.
2. I was lost at first for why "quintillion" becomes "infinite/MAX", and why and when "infinite" takes hold and you cannot go down from there. An extra step on the tutorial would be appreciated, explaining that. Also, the "1 of 16 infinite collected" on the Heart was VERY confusing at first. I reset two times with just 1 Infinity until I understood.
3. The game overpromises and underdelivers on the "choose" mechanic. Because of this, mechanically it's obviously better to slay everything to power up clicks.