Hi! Yeah this game was made for a 36 word RPG jam so the rules are exceptionally brief. In short, but somehow longer:
The players are stuck in a time loop, which is represented by a deck of cards. Every time a player wishes to act, they describe what they're doing, then flip over the top card of the deck. They then roll a d10, and add +5 if the nature of their action matches the suit, and another +4 if it also matches the player's chosen suit. If the result of the roll is greater than the value of the card, the action succeeds and play proceeds. The card is discarded.
Ex. Let's say my character class is clubs. I want to punch an undercover agent in the face. I flip the card over and it's 8C. Since the suit is clubs, and I'm doing a violent action I get +5. I also get another +4 since my class is clubs. I roll a d10 and get a 4. The total (13) is greater than the card (8) so I succeed.
If the player fails the action, the timeloop goes back to the beginning, and the discarded cards are placed back on top of the deck in the same order. This means you restart the scenario with the same cards in the same order.
The idea here is kinda a mix of a memory game and a traditional RPG, where you might go through a loop multiple times to discover the right route through. I'm considering expanding this idea further with actual real character build options and much clearer text, but this is all you can really get across with 36 words haha!