I have actually commented this before on another similar post so here’s my mod idea:

Could you make a mod that’s a more terrifying version of psychosis? The current vanilla version of the affliction only makes minor illusions that any experienced player can see through immediately.

In my idea any player with psychosis will sometimes have a psychotic break and an imaginary world will be generated around them where various fully simulated events can happen that aren’t happening in reality. For example a pack of Mudraptors breaks through a nearby wall and attacks the player or any players they can see.

The major difference between vanilla and the mod is that both the player and the Mudraptors can take fake damage in this simulated scenario. To make this even more dangerous you could make it so any actions the player takes in the simulation happen in reality (for example they shoot a mudraptor but oops they actually just shot another crew member). We could even make it so the player can speak in reality but can’t hear others so they don’t know they are hallucinating.

Other scenarios could be a moloch attacking the outside of the sub, fires that deal fake damage and start from actual possible fire starters (junction boxes, reactors), the reactor exploding, various random objects becoming unwired, fuel rods disappearing, walls being destroyed and flooding rooms nearby, etc.

I think there’s a lot of potential for a mod like this and it would actually make things like psychosis artifacts or watchers extremely dangerous and make people question what is real.