If I already purchased it, but I want to throw another copy or two into the community pool, is there a way to do that?

It's a lovely successor to Sentinel/Sentinel Returns, but I must say I'm a little taken aback that no mention of those predecessors is in the credits or devlog, particularly given how closely the design matches.

Oh, also sometimes putting a 3 card in a box turns into a 5, or some other number, and I have no idea why, or why sometimes the grid rejects cards. A manual would be a very handy thing to have. Also a turn-based option, because it is miserable having to just clickety-slap cards into the grid and hope they don't get bounced out of the grid at random. There was a lot of work put into this, and I'd like to be able to enjoy it.

I'm so early in the game I just got my first Field Card, but I have no idea what the rules of the card game actually *are*, which is a little frustrating. Sometimes I'm allowed to place cards on the grid, other times not; sometimes the attack grid is 2x3, then it suddenly changes to 2x2; same with the defense grid. Sometimes there's numbers in the grids without me putting cards in them, and I don't know what those numbers mean either. The real-time aspect means I can't look for patterns to learn what's going on, because i'm just slapping cards into holes as fast as I can with no strategy, since I can't make a strategy without knowing how things work. Doesn't seem to be a rulebook in the game menus anywhere, sadly.