the game is really interesting, similar to 7 Days to End with You or chants of sennaar.
If I could give you a single piece of advice, it would be to implement a “checkmark” system for words, similar to Chants of Sennarr. Maybe when the alien asks you to create words (so every once in a while) it could lock or validate them. I think it’s reassuring when you’re not stuck for minutes or hours because you thought a word was correct (and in many contexts it actually fit), but ultimately it was incorrect.