I have a few ideas.
1. general screen blackout and auditory hallucinations when tired.
2. most Players stop being afraid when they realize it's all the pranks of friendly-playful cats. I suggest delaying their appearance and enhancing the atmosphere with NPCs that will cause Arirals to appear. For example, Unknown organisms or groups that are aggressive to the player and their capture is engaged by a group of researchers who landed on the planet.
3. Mushrooms and cones - they are everywhere, they cause a big drop in fps even on not weak PCs.
4. Add the ability to donate in other ways.
BTC wallets or other.
THANK YOU FOR YOUR HARD WORK. I WISH YOU SUCCESS.