Thanks for playing the game and for your feedback! You are correct, there are still lots of things needed to be done to make the game super clean to understand. Plus, we need to test our rules because it does seem like some of them don't work as expected.
Right now, the game logic is based on OR rules, and each player draws a random card that matches one of them.
We are eager to experiment with the game and release a full game eventually, with story mode and everything. We even had ideas for a multiplayer mode. Glad to see you are interested in the game!
Some of the rules should be mutually exclusive. I had a game with both "Cards with odd values" and "Cards with even values", which allows any card to be played.
You should also consider the fact that some combinations are confusing, such as "odd numbers" and "prime numbers" (which would just look like an "odd numbers" rule that randomly allows for 2).
I had a lot of fun with the game and look forward to future versions!