Force Mob Challenge inspired by BastiGHG
by AlphaSlither
Force Mob Challenge turns a Minecraft server into a timed contest where one random mob is chosen as the target and every spawn across the world is converted into it.
What it does
A challenge starts with a random number from 1 to 100, which selects the target mob. Once a target is set, each mob that appears anywhere in the world is converted into that target on the spot, so one creature ends up dominating every area. The challenge is framed as a race to beat the Ender Dragon, and the Kill Random Number Mod idea behind it is reflected in how the target is picked.
A boss bar across the top of the screen shows the current target mob and the progress toward it, for example SALMON. Progress is tracked in real time and shown instantly in the boss bar and in chat when a step is completed. Piglins and Hoglins are excluded from the transformation so that the Nether stays playable.
The mod is Fabric only, built for Minecraft 1.21.11, and it runs on the server alone. Players do not install anything, since clients need nothing. The license is Creative Commons Attribution Non Commercial 4.0, and the project is not open source.
Key features
Random target selection
A random number from 1 to 100 picks the mob that the whole world must turn into for the challenge.
World-wide transformation
Every mob that spawns is converted into the current target mob, so the entire world changes at once.
Boss bar progress
A horizontal bar across the top of the screen shows which mob is the current target and how far the run has progressed.
Piglin protection
Piglins, their variants and Hoglins are left out of the transformation, keeping the Nether playable.
Real-time tracking
Progress updates appear at once in the boss bar and in chat when a step is completed.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Server challenge events
Server owners can run a timed contest where every player works toward the same random target mob.
Who it’s for: Server owners who want a shared, timed challenge for their players. Players join without installing anything.
Questions
Does Force Mob Challenge need to be installed by players?
Which loader and version does Force Mob Challenge use?
Are Piglins affected by the transformation?
More from AlphaSlither
What the author says
This Minecraft mod adds an exciting challenge to servers where the entire world is transformed into a specific target mob.
Official listing
- Modrinth page
- modrinth.com/mod/force-mob-challenge
- Owner
- AlphaSlither
- Published
- 2026-02-25
- Updated on Modrinth
- 2026-02-26
- Facts verified
- 2026-10-15