Breathe Underwater
by Sujest
Breathe Underwater lets players breathe under water without a potion effect, so the air supply stops being a limit while exploring the ocean.
What it does
A player who goes under water keeps breathing without drinking a potion or holding an item, and the mod shows its own interface for the bubble counter. The bubbles decrease over time as they would in vanilla, and the mod is meant for a slower, more relaxed way to explore the depths of the ocean. Fabric API is required, and the mod is published for Fabric on 1.21.1 only, under the MIT License; it is not open source. Only the server needs the mod, so players join without installing anything.
Key features
Breathing without potions
Players can stay under water without a potion effect, so no brewing or stock of potions is needed.
Bubble interface
A display shows the remaining air while the player is submerged, and the counter ticks down at the same pace as the vanilla bubbles.
Relaxed ocean exploration
Removing the air limit lets players spend more time exploring the depths of the ocean at their own pace.
Gallery
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 1
How it compares
Waterbound is an open source Fabric mod under the MIT License for 1.21.5 – 1.21.8, and both sides run it. Last Breathes is client-side only, not open source, and covers 1.21 – 1.21.11, so it changes nothing on the server. Breathe Underwater stays on the server alone and targets only 1.21.1.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Breathe Underwater | Fabric | 1.21.1 | Server-side only | 2026-03-12 |
| Waterbound | Fabric | 1.21.5 – 1.21.8 | Client and server | 2025-07-20 |
| Last Breathes | Fabric | 1.21 – 1.21.11 | Client-side only | 2026-05-17 |
Questions
Does Breathe Underwater need Fabric API?
In the catalog
Breathe Underwater is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 32,366 mods support Minecraft 1.21.1.
Similar mods
What the author says
This mod allows you to breathe underwater without needing potions or displaying interfaces. Bubbles do not decrease and are updated every tick. This mod is ideal if you are looking for a simpler or more relaxed game mode so you can explore the depths of the ocean. Ideal with Cobblemon and the Cobbleverse modpack!
Official listing
- Modrinth page
- modrinth.com/mod/breathe-underwater
- Owner
- Sujest
- Published
- 2026-03-12
- Updated on Modrinth
- 2026-03-12
- Facts verified
- 2026-10-15