@oter, thank you very much for playing!
I had a feeling the games would stretch pretty long, especially by the standard of a game jam game. The fact that it was half done in about one session is actually reassuring, because I was afraid it would go even longer.
I thought a lot about how to incorporate the End card to balance it out. Having it just drawn once would be a lot more likely to make a game way too short, but I felt like making the ending the player's decision by default would put sort of an unfun choice on them.
The idea of the Major Event Cards is pretty good. Once I do the math on the average number of turns to get to each ace, players could use that to decide ahead of time how long of a game to play. I'd have to think about what events to put on those cards so that it's not really an issue that players are more or less likely (depending on the chosen game length) to get those cards, so maybe they'd be some bonus topic, like aspects of a creation myth or something. Would you mind if I included a version of this idea in the next version of the game, and if so, would you want to be credited in some way?
E: Approximately, for whatever ace you end at, you'll have 10x that many turns. So, if you decide to end on the second ace you draw, you'll have an average of 20 turns.