
Cosmonautics: Deep Air
Compatibility bridge between Create: Deep Seas and Cosmonautics. Lets entities breathe normally while inside a sealed, unbreached, oxygenated sable sublevel.
Screenshots



About this Mod
About Cosmonautics: Deep Air
This mod simply adds localized air and gravity to cosmonautics using deep seas systems, this is just a temporary solution until air is added to cosmonautics standalone.
There is 1 major caveat to gravity, and that is atleast 1 room in your ship will need air due to deep sea memory cleanup.
Dependencies
Create
Create Aeronautics
Sable
Cosmonautics
Create: Deep Sea
** Optional, but one of the three is required. (Or any mod that allows the generation and transport of FE)
Create Addition
Create New Age
Create Power Grid
Available Versions
How to Install Cosmonautics: Deep Air on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.11).
Install Mod
Open the mod browser in the dashboard and search for "Cosmonautics: Deep Air". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.11, 1.21.10, 1.21.9 (+8 more)
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Cosmonautics: Deep Air server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.11). You can switch loaders with one click in the panel.
Is Cosmonautics: Deep Air compatible with neoforge?
Cosmonautics: Deep Air officially supports neoforge for Minecraft 1.21.11, 1.21.10, 1.21.9. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Cosmonautics: Deep Air – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Cosmonautics: Deep Air consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Cosmonautics: Deep Air with just one click on your server.