Wonderous Sea - Endless Ocean
With Wonderous Sea - Endless Ocean installed, new marine animals appear in ocean and mangrove swamp biomes, including dolphins, a flatworm and several fish species.
What it does
The mod adds a set of under-represented marine animals to the world. Threadfin Lookdowns and Scatfish spawn in warm oceans and mangrove swamps, Soapfish in warm ocean biomes, and Blue Glaucus in select lukewarm and warm ocean biomes. Several can be caught in a bucket, and most leave fish scraps when they die. Blue Glaucus drop blue dye, and Marine Flatworms drop slime balls.
Stenella dolphins, which come in six species, sometimes drop a dolphin tooth, and a brewed potion can add the dolphin's grace effect. Right Whale Dolphins live in cold oceans and can be bred with bucketed salmon. Tucuxi river dolphins are found in mangrove swamps and breed with a bucketed Threadfin Lookdown. The mod is licensed All rights reserved and runs on client and server, with a single Forge build for 1.20.1.
Key features
Warm-ocean fish
Threadfin Lookdowns, Scatfish and Soapfish spawn in warm oceans and mangrove swamps, with bucketable variants.
Blue Glaucus
Small venomous nudibranches found in select lukewarm and warm ocean biomes, dropping blue dye when killed.
Marine Flatworms
Ten species variants of free-swimming flatworms, which drop slime balls on death and more species are planned.
Dolphins and whales
Stenella dolphins drop dolphin teeth, Right Whale Dolphins breed with salmon, and Tucuxi river dolphins breed in mangrove swamps.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Unusual Spawning is a server-required mod for 1.20 – 1.20.1 under the MIT License, so the server needs it while clients may leave it out. Mangrove+ targets the same swamp biomes for 1.20.1 and is also installed on both sides, but it is not open source. Just-In OCEAN is client-side only for 1.20.1, so players alone run it.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Wonderous Sea - Endless Ocean | Forge | 1.20.1 | Client and server | 2026-01-19 |
| Unusual Spawning | Forge | 1.20 – 1.20.1 | Server required, client optional | 2026-04-02 |
| Mangrove+ | Forge | 1.20.1 | Client and server | 2025-06-03 |
| Just-In OCEAN | Forge | 1.20.1 | Client-side only | 2025-09-12 |
Questions
Does Wonderous Sea need to be installed on the server?
Which Minecraft version and loader does Wonderous Sea use?
Can the new fish and dolphins be bucketed?
In the catalog
Wonderous Sea - Endless Ocean is one of 8,515 World generation mods on ModsFinder, and one of 5,058 World generation mods for Forge. 34,764 mods support Minecraft 1.20.1.
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What the author says
# Disclaimer! Wonderous Sea is the final attempt by our team to create a mod in the name of "Endless Ocean". We are a select few of the past team members who helped construct the first two iterations, and with that we have come together for one last time. Wonderous Sea will add a plethora of new animals to your…
Official listing
- Modrinth page
- modrinth.com/mod/wonderoussea
- Owner
- asleepyhollow
- Published
- 2025-11-11
- Updated on Modrinth
- 2026-01-19
- Facts verified
- 2026-10-15