I also found the game from the same link on Reddit. I really loved the aha! moments – they reminded me of games like Chants of Sennah, Outer Wilds, etc. It's amazing that you were able to accomplish the same kind of feeling with something as minimal as word searches. Especially cool was seeing two different puzzles themed around different zodiacs!
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Thanks! Glad you liked the zodiacs, I mainly included them just to have clear sets of 12, and wasn't sure how fun they'd be. (Though I was happy with the duplicate z6 clue.) I haven't finished Sennaar or Outer Wilds yet, since Outer Wilds gives me motion sickness, but I hope to eventually! I mostly play pretty minimalist games.