if you love slay the spire, definitely check out monster train: a lot of the systems are the same (each run is short, deckbuilder, accumulate artifacts, upgrade

if you love slay the spire, definitely check out monster train: a lot of the systems are the same (each run is short, deckbuilder, accumulate artifacts, upgrade/purge/gain cards, a "covenant rank" system (same as spire's ascension) to ratchet up the difficulty). the combat is replaced with angels-vs-demons tower defence on a quadruple-decker train. daily runs with a shared scoreboard. really polished. the strategy is much more upgrade-focused (there are multiple kinds of upgrades that can be applied to cards, and each card can have multiple upgrades). another recommendation: circadian dice. maybe call it a "dicebuilder". not as polished or commercialised as spire or monster train, but a gem of a game. your character starts with two d6, each d6 has different symbol(s) on each face (attack, shield, coin, heart, ...). then during the run you can buy upgrades to replace two adjacent faces in your face. as your character gains experience you unlock additional dice. there's meta-progression than unlocks another handful of symbols and symbol-modifiers (score the dice even if you reroll it; get a bonus for scoring the dice during the day/night; ...) circadian dice is a pay-what-you-like download for windows from itch.io