What are some alternatives?
When comparing Card Crawl and Slay the Spire, you can also consider the following products
Monster Slayers - Monster Slayers developed by Nerdook Productions is a Role-playing, Rogue-like, Action, Turn-based and Single-player video game.
Night of the Full Moon - Mild strategy deck-building card game based on the tale of Little Red Riding Hood.
Blood Card - Adventure card game combining elements of roguelike and deckbuilding.
SteamWorld Quest: Hand of Gilgamech - A turn-based role-playing game and deck-building game hybrid
Guild of Dungeoneering - Build a dungeon from playing cards in this turn-based dungeon crawler.
Children of Zodiarcs - Story-driven, tactical RPG