Have you considered making this into a full roguelite/like game? I absolutely love this game and have ever since I found out about it like a year ago, and was always disappointed that I couldn't play more of it. INFINITELY. You could charge like $35+ for a full version of this and I would buy it no questions asked.
If you do, also consider a switch port. This would be the perfect game on the go and would join Inscryption and Slay the Spire as my "On the Go Deckbuilders" in that regard