Hostility Inverted
by MrLionware
Hostility Inverted reverses how mobs treat players, so that passive animals turn hostile while hostile monsters largely leave the player alone.
What it does
On a Fabric server, the mod flips mob behavior around the player. Animals that normally wander peacefully become hostile toward players, and monsters that normally attack become passive toward them. Villagers, iron golems and similar targets still get attacked by the hostile mobs, so village defense keeps some of its usual role.
Light is inverted as well. Bright areas apply Blindness, which resembles the darkness of a cave, while dark areas grant Night Vision. Direct sunlight burns the player, so daytime travel becomes a risk. The mod is meant for survival and adventure play that wants a role-reversal twist on familiar rules.
The server runs Fabric. It is server-side only, so players join without installing anything. The mod is released under the MIT License, is open source, and is published for 1.21 – 1.21.11, with 1.0.2 for 1.21.11 as the latest Fabric file. Paper is also listed as a server platform.
Key features
Inverted mob behavior
Passive mobs attack players, while hostile mobs ignore them, which changes how early nights and travel play out.
Pillagers and witches trade
Pillagers and witches can be sworn to loyalty and offer trades, and loyal illagers help defend villages during raids.
Inverted light effects
Bright areas inflict Blindness and dark areas grant Night Vision, so lighting decides where the player can see.
Sun damage
Direct sunlight sets the player on fire, which makes open daytime exposure dangerous.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Role-reversal survival
Survival worlds can use the flipped mob and light rules as a new challenge on familiar terrain.
Adventure maps
Adventure play can rely on the inverted behavior to build encounters around hostile animals and friendly monsters.
Who it’s for: Server owners and players who want survival or adventure gameplay built around reversed mob behavior and light rules, with the server running Fabric or Paper.
Questions
Does Hostility Inverted need to be installed by players?
Which loader does Hostility Inverted use?
Can illagers be recruited?
Official listing
- Modrinth page
- modrinth.com/mod/hostility-inverted
- Owner
- MrLionware
- Published
- 2026-02-19
- Updated on Modrinth
- 2026-02-24
- Facts verified
- 2026-10-15