After realizing I'd played Onirim incorrectly for months... I put together this "flow chart" style player aid. This covers the base game plus all expansions. If playing with less than all expansions, simply ignore what isn't relevant.
Updated to include: Lose condition, more clarity on playing towers, adjusted to make sure players have 5 cards in hand before resuming playing/discarding cards, and a few other minor embarrassing errors.