Glasolotl

I think it would mostly be a cozy/survival game with inventory management, making sure your kingdom has the supplies it needs (Ohm shells, clean seeds/food/water, medicine, other materials, possibly trading with other kingdoms), collecting different plants/spores to take to your lab and cultivate (unlocking new medicines/foods/etc. and maybe working to develop plant strains that help purify toxins or are more hearty against them), going on fetch/collection quests for villagers (or other kingdoms), while also making sure you never take so much that it poorly affects/angers the insects or damages the jungle (You could craft flash-grenades and use your insect whistle to escape or calm insects. I’d also like it if the insects could remember how you’ve interacted with them previously and react accordingly, positively or negatively).

You could explore and fill out your map (finding areas like old ruins, different jungle levels, the under-jungle ancient forest, insect nests, caves, etc.), fly your glider, rescue travelers, send Teto off to grab hard-to-reach items, and survive difficult environments (I like the idea that chiko nuts could be a healing item only given by the villagers, lol! You could also heal from toxic air by spending time in clean air)