Story Synth in a free web platform from making, playing, and sharing prompt driven storytelling games (like For the Queen or The Quiet Year). Designing is as easy as adding prompts (or cards) to a google sheet and then dropping that sheet url in the website. There also an extension that lets you add a basic card drawing module to the games.
If your card game is all about using the cards to look up prompts, give Story Synth a look!
If you make a game with Story Synth, you can also submit it to the Story Synth Summer Game Jam (running through August).