I'm talking about an "analog game." As in, a board game. Like Candyland. Or a table-top Role Playing Game. Dungeons & Dragons, if you will.
Basically, you write the rules, and players who've downloaded your document read them and follow them to play the game.
For example, I released Sage Journey: Disc 2, a game where you print it out and follow my instructions for how to proceed in the adventure and fight monsters. <https://neuronbureau.itch.io/sage-journey-disc-2>.
But you don't have to make an RPG. Yahtzee is simply a game where you roll dice and count up numbers. Sorry! is just rolling dice and moving around a board. Poker cards are used in different permutations of playing 1 card on your turn.