Cobblemon Ultra Wormholes
by Raguto
Cobblemon Ultra Wormholes spawns boss Ultra Beast events on a server, where players battle and catch the creatures that appear.
What it does
Ultra Wormhole events appear at random times on a timer the server owner sets, and each one brings a boss Ultra Beast that players can battle and try to catch. Ultra Beast encounters draw on a shared HP pool, so every participating player contributes to the same fight. Rewards are handed out by contribution, which means those who took part in the battle receive them. After the boss is defeated, a Beast Ball is required to make the capture prompt appear.
The encounter itself is managed on the server, so the mod is purely server-side. Players who also install it on their client gain optional visuals, such as a custom skybox during an active event and an end wormhole effect. The mod requires Cobblemon and Fabric API as dependencies. Commands need operator permission level 2. Server owners can adjust the overall event behavior as well as the loadout of each individual Ultra Beast.
Key features
Random wormhole events
Events spawn on a configurable timer, with boss Ultra Beasts that players battle and catch.
Shared encounter HP
Ultra Beast encounters use one HP pool shared by all participating players.
Contribution-based rewards
Reward tables pay out to players who took part in the battle, not only to the one who lands the final hit.
Configurable species pool
Server owners can replace the Ultra Beasts with other species in the pool.
Per-species loadouts
Movesets, held items, natures, EV spreads and reward tables can each be set for every species.
Optional client visuals
Players with the mod on their client see the custom skybox and end wormhole visual during an active event.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 2
How it compares
Game Creatures [Cobblemon] is open source under the Mozilla Public License 2.0 and targets 1.21.1 on Fabric and NeoForge. Players can join with it installed or without it, as either side can run it and neither needs it. Fals Beasts is not open source under the MIT License and covers 1.21 – 1.21.1 across Fabric, Forge, NeoForge and Quilt. The server can run it alone or with clients, and installing it on the server is enough. Cobblemon Spawn Custom is open source under the GNU General Public License v3.0 only, works on NeoForge for 1.21.1, and is server-side only, so clients need nothing.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Cobblemon Ultra Wormholes | Fabric and NeoForge | 1.21.1 | Server required, client optional | 2026-04-06 |
| Game Creatures [Cobblemon] | Fabric and NeoForge | 1.21.1 | Server required, client optional | 2026-05-23 |
| Fals Beasts | Fabric, Forge, NeoForge and Quilt | 1.21 – 1.21.1 | Server required, client optional | 2026-10-07 |
| Cobblemon Spawn Custom | NeoForge | 1.21.1 | Server-side only | 2025-09-07 |
Questions
Does Cobblemon Ultra Wormholes need Fabric API?
Does every player have to install the mod?
Which loaders are supported?
In the catalog
Cobblemon Ultra Wormholes is one of 11,058 Mobs mods on ModsFinder, and one of 5,189 Mobs mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from Raguto
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What the author says
Cobblemon Ultra Wormholes adds timed Ultra Wormhole events that spawn an Ultra Beast as a shared raid-style encounter. When a wormhole opens, players can find the active boss, join the battle, and chip away at the same shared HP pool. Any number of players can participate, and rewards are handled per contributor…
Official listing
- Modrinth page
- modrinth.com/mod/cobblemon-ultra-wormholes
- Owner
- Raguto
- Published
- 2026-03-05
- Updated on Modrinth
- 2026-04-06
- Facts verified
- 2026-10-15