The oceans can be quite asphyxiating. Stay underwater longer by catching oxygen bubbles and staying close to the vents. You can even do your whole adventure underwater.
Main features
- Randomly spawn bubbles, chimneys and safezones in Ocean Type Biomes.
- Oxygen stacks up to 90 seconds (default).
- Bubble: catching a bubble gives you 30 seconds of breathing time. One time use. Appears on the ocean floor.
- Chimney: standing near a chimney gives you 3 seconds of breathing time, every 5 ticks. Unlimited uses. Appears on the ocean floor.
- Safezone: standing inside this breathable area gives you 4 seconds of oxygen every 3 seconds. Spawn in the deep waters of oceans.
- Oxidizer: build the oxidizer machine (see screenshot) to create a safezone centered on the device. Place the fuel block last to activate it. Unlimited use, but requires to be deoxidized frequently (with an axe).
- Compatible with Terralith and WWOO custom ocean/river/chasm biomes.
More explanations on the features in the video (french) -> watch on Youtube with English audio
Datapack's Options
In game, use: /function fkob:options/get
Patreon Supporters
- 1.21.11 Oxidizer (02/01/2026): Azerxim, Setsu-P, varinyc, nfnpgllxhn
- 1.21.11 (30/12/2025): Azerxim, Setsu-P, varinyc, Wani P, nfnpgllxhn
- 1.21.9 (30/10/2025): CYKLOPPS, Azerxim, varinyc, Setsu-P, Wani P, Lionel Felke
- 1.21.5 (2025-07-14): CYKLOPPS, Azerxim, Setsu-P, varinyc, Wani P
- 1.21.2 (2024-11-19): Screaming Man, ZMH, Darklad32, CYKLOPPS, Azerxim, Aidan McCreary, varinyc, Setsu-P, Maximilian Adler, ODS, Jamie B
- 1.21 (2024-07-01): 아아앨, Screaming Man, ZMH, Darklad32, CYKLOPPS, Aidan McCreary, Azerxim, Setsu-P, Kobe Prokopetz
- 1.20.5+ (2024-05-24): Angelo Russo, 아아앨, EXcore, Screaming Man, ZMH, Darklad32, CYKLOPPS, Memick Kung, Aidan McCreary, Setsu-P
- 1.20.4 (2023-12-26): Angelo Russo, 깔수, Screaming Man, ZMH, Darklad32, CYKLOPPS, God Emperor Leto II Atriedes
- 1.20 update (2022-07-20): Delivator, Jonathan Fanelli, Angelo Russo, Phantom-Glitch-Wolf, John Stampe, 깔수, Screaming Man, Dorian Dejean, ooF, ZMH, Yokie
- Compatibility Terralith + WWOO (2023-02-17): Jonathan Fanelli, Angelo Russo, Screaming Man, Dorian Dejean, ooF, ZMH, Deadlot3, Samantha Flanary
- 1.19 update (2022-06-20): Screaming Man, Dorian Dejean, Peter Schubert, ooF, Tân Huỳnh
- 1.18 update (2021-12-09): Screaming Man, Dorian Dejean, Peter Schubert
- Ocean Floor Trails (2021-10-10): -
- Bubble and chimney (2021-09-24): -
Patreon Version
The free versions are designed to be fun and fully playable.
The Patreon version is for players and server owners who want more control, comfort, and flexibility through an in-game settings menu to tweak the parameters live, without file editing.
Becoming a Gold Patreon also means:
- Getting access to every Patreon versions of every projects.
- Getting your name listed in each project and on this page (see above).
- Supporting long-term development, updates, and new features 💛
Mod Version
Mod packaging is designed to be more convenient for your installations. Executed on the server side, it does not need to be installed on the client side. Keep in mind that inside the mod is simply a datapack. In addition, interactions between too many mods can degrade the functioning of one or more mods.
Issue / Bug
Require entity scoreboards to function.
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