Thanks for the suggestions!
- I will consider nerfing the 49s deck.
- Multiplayer is definitely something I'm thinking about, it's just a lot of work and I'll probably wait until I finish some other projects.
- I will add the hotkeys 1-7. I'm not sure I want spacebar for End Turn as it is easy to press accidentally. Is the "E" key a good alternative? (To match Slay the Spire.)
- For additional postgame content, my plan is to eventually add a Drafting tournament. I don't want to add a bunch of content above 100 because giving the player too much energy unbalances the game (e.g. 29-stone becomes too good).