As a general rule, $3 games don't tend to drop cards. ESPECIALLY if they have bad (or non-existent) "cover art" in the little version that shows up here oh SG. Reason being: If they lacked enough "art dept" to apply to marketing the game, they sure as hell didn't put any towards designing card, emotes or backgrounds. $3 RPG-Maker games with "cover art" nearly always have cover art. Unless they're Russian!

Many of the worst and cheapest games on Steam exists specifically to have cards, in an effort to use bots to get income: https://www.mcvuk.com/business-news/pc/steam-clamps-down-on-fake-game-trading-card-scammers/

Thank you dlcarrier