YUNG's Better Ocean Monuments

YUNG's Better Ocean Monuments is a world-generation mod created by YUNG. Replaces vanilla ocean monuments with larger, more complex structures containing multiple wings, puzzles, and better loot. As a world gen mod it concentrates on terrain, biomes, and the shape of the world itself, and it has been downloaded around 18 million times, which puts it among the options players reach for in this space.

YUNG's Better Ocean Monuments is built for players who want ocean monuments to feel like real raid targets. It expands monuments with new layouts, loot, and challenges so the deep ocean rewards a properly prepared expedition. It is approachable enough to drop into a world and use right away, with little setup required.

The mod is available for Forge, Fabric, and NeoForge, so it fits a range of modpacks and launchers. It currently supports Minecraft 1.20.1 and 1.21.1, spanning the 1.20.1 to 1.21.1 releases. It runs on both the client and the server, so on a multiplayer server every player who connects needs it installed alongside the server itself.

YUNG's Better Ocean Monuments works particularly well alongside YUNG's API. It depends on YUNG's API, so those must be present and on the same loader and version. Because it ships for both Fabric and Forge-family loaders, it slots into most popular modpacks regardless of which side they are built on.

YUNG's Better Ocean Monuments has a modest footprint for what it adds and is widely used in modpacks without notable performance concerns.

If you are comparing options, a similar mod worth a look is YUNG's Better Strongholds. They overlap in purpose, so most players pick whichever suits their loader and pack.