Water Challenge
by eckelsoft
Water Challenge is a Fabric mod that changes how players drown, so air-based survival under water becomes a gameplay rule rather than a short grace period.
What it does
Players drown in air while underwater, and the mod sets the timing for that loss. A grace period of 30 ticks passes before air-drowning damage begins, and the value is configurable. The goal of the challenge is to finish the game while staying underwater, which turns ordinary travel and mining into a much tighter task.
The Turtle Helmet extends how long a player can stay submerged, adding about 300 ticks of survival time when worn. The Respiration enchantment on a helmet lowers the drowning damage taken each second, so players can combine it with the helmet for a longer run. Fabric API is required, and the mod runs on client and server, so both the server and every player need it. Files cover 1.21.9 – 1.21.11, with 1.2 for 1.21.11 as the latest build, published under the MIT License with source code available.
Key features
Air drowning
Players take damage once their air runs out underwater, which makes breath the central limit of the challenge.
Adjustable grace period
A default of 30 ticks passes before air-drowning damage starts, and the value can be changed in the settings.
Turtle Helmet
Wearing a Turtle Helmet extends how long a player can remain underwater, adding roughly 300 ticks of air.
Respiration helmets
A helmet with the Respiration enchantment reduces the drowning damage taken per second, stacking with the helmet's extra time.
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
Use cases
Underwater run
Players set a goal of beating the game while staying underwater, using the grace period and helmets to plan each trip.
Who it’s for: Players who want a survival challenge built around breath and drowning, and server owners who want a shared rule that applies to everyone on the world.
How it compares
Harsh Rain is a Fabric mod for 1.21.5 – 1.21.6 that is server-side only, released under CC0 1.0 Universal and not open source. Jungle's Air Challenge is also a Fabric mod, server-side only, released under the MIT License for 1.21.11, but it is not open source. Random Mob Challenge is a Fabric mod for 1.21.11 that runs on client and server, released under a custom license and not open source, so it differs from Water Challenge in both license and scope.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Water Challenge | Fabric | 1.21.9 – 1.21.11 | Client and server | 2026-02-04 |
| Harsh Rain | Fabric | 1.21.5 – 1.21.6 | Server-side only | 2025-06-26 |
| Jungle's Air Challenge | Fabric | 1.21.11 | Server-side only | 2026-02-19 |
| Random Mob Challenge | Fabric | 1.21.11 | Client and server | 2026-03-16 |
Questions
Does Water Challenge need Fabric API?
Does the server need the mod installed?
Which game versions have files?
Can the grace period be changed?
In the catalog
Water Challenge is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from eckelsoft
Similar mods
What the author says
In this mod, players drown on air (and in water). Can you beat the game, even under water?
Official listing
- Modrinth page
- modrinth.com/mod/water-challenge
- Owner
- eckelsoft
- Published
- 2026-01-27
- Updated on Modrinth
- 2026-02-04
- Facts verified
- 2026-10-15