Schizo

When the ship first lands, one player is secretly picked. Only that player sees things in the facility that aren't there. Nobody else can see them.

Fake scrap

• 5 extra pieces of scrap per round. They look like normal scrap from that moon, sit where real scrap spawns, and show a value when scanned.
• Picking one up takes an inventory slot and adds weight, like real scrap.
• They can't be sold. The moment the afflicted player leaves the building, every phantom in their inventory disappears.
• Other players see the afflicted player holding nothing.

Fake monsters

• Every 45 to 120 seconds inside the facility, a monster from that moon (thumper, bracken, coil-head, spider, nutcracker, butler, hoarding bug, spore lizard or jester) appears somewhere out of sight and comes for the afflicted player.
• It makes its real sounds, chases when it sees them, and fake coil-heads freeze when looked at.
• If it reaches them, it lunges with a scream and a jolt of fear, then vanishes. It can't hurt them. It also fades away on its own after 25 to 45 seconds.
• Nobody else can see or hear it.

Everyone in the lobby needs the mod. The afflicted player is chosen completely at random by the game (no one picks, and no one is told who it is), and every client needs the mod to keep inventory slots in sync.

Config (BepInEx/config/axelc.schizo.cfg)