Minecraft Java 1.21 Mods

Browse 7 free mods for Minecraft Java 1.21 — popular picks include FTB OceanBlock 2, Illager War Trireme, Unstable SMP Simulator.

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7 mods

1.21.1neoforge

FTB OceanBlock 2

Nothing but endless ocean. No land. No rescue. You’re alone - or so you think...

1.4Mdownloads

1.21.11neoforge

Illager War Trireme

Adds an Illager War Trireme to warm ocean biomes

761kdownloads

1.21.11fabric

Unstable SMP Simulator

Pre-configured Unstable SMP battle simulator modpack. Includes: Final Law Battle, 2v1000 Law Battle, Great Sea Law Battle, Tournament, Cindercrest Battle, Lakerek VS Wemmbu, Law End Island Defense, Mist, Smuggler Path Law Fight, Underworld

57kdownloads

1.21.1neoforge

Medieval Empires Official

Build, battle, and rule your empire! 🏰⚔️ Lead villagers, forge armies, and wage war across ages—from swords to muskets. Face rival kingdoms, sea beasts, and dragons in a world where only the strongest leaders survive. Will you rise… or burn?

12kdownloads

1.21.1neoforge

Over the Sea | Underwater Adventures!

Facing new aquatic dangers in a world made up entirely of water and small islands floating on it.

5.3kdownloads

1.20.1forge

SHARKSQUAD - True Heroes

A modpack for the SharkSquad - True Heroes project

3.3kdownloads

1.21.1neoforge

Eternal Ocean

An ocean world with creatable ships along with many new fishes and other creatures. Swimming and fishing are overhauled, along with plenty of new structures and biomes to explore.

167downloads