
Cosmic Chaos
A boss progression mod with new enemies, weapon classes, passive items, and unique weapons.
Screenshots






About this Mod

Cosmic Chaos
(This is a beta of the mod. please give feedback about playability. Also yes, ironically, the cosmos arent finished but can still be accessed.)
(Anything lore wise does not have anything to do with real world beliefs. So calm down, theorists.)
Its encouraged to play with keep inventory enabled, since progression can take pretty long.
The ancient people that went to the cosmos have been gone for a long time, only leaving structure ruins, and strange floating islands. Survive the relentless monsters of the sky, find underground dungeons, and fight bosses to find out what happened to the ancient cosmic civilization.
New weapon classes: Vigorous. Enraged effect doubles your damage, Enraged II triples your damage. Some Offhand Passives increase your vigorous damage along with certain armors. Ranged class has all sorts of different gun/bow types, certain armors and passives can increase dealt damage, or reduce ammo usage.
Offhand Passive Items: Grant special abilities as you hold it in your offhand.
New Bosses: The wither drops unique items, new accessible bosses.
New mobs spawn during thunderstorms, dropping useful materials, including Offhand Passives and weapons.
Armor does not break anymore (Just thought it fit the mod more).
You start at 5 hearts, but with a certain item, can increase your maximum hearts up to 15.
Plethora of new weapons, shields, ranged weapons, and consumables. Even a computer item that gives you information about the new monsters, including the items they drop.
Added bogged and parched to this version because they're really cool.
Unique Dungeons with bosses at the end.
Iron/diamond axes, iron/diamond swords, and iron/diamond armor can no longer be crafted via crafting table. smithing tables are now required. copper swords/axes require an iron ingot to smith into their iron counterparts, and copper armor requires an iron block each armor piece to smith into their iron counterparts. diamond swords/axes/pickaxes requires their amethyst counterpart and a diamond, and diamond armor requires their amethyst counterpart and a diamond block.
Hard mode gives new mobs hard mode skins, also armors and offhand passive items exclusive to hard mode.
Type /helpcoschaos in the chat for help!


Introducing the 1.1 Freezing Or Burning Update! 12/27/2025
Just in time for the winter, theres new content in the desert and tundra.
2 New dungeons.
3 New Bosses.
New offhand passive items, armor, and weapons.
Freezing debuff has been overhauled.
New elemental strengths and weaknesses.
Theres even enough items for class playthroughs as well.
Make sure you complete the network research computer, because theres a slot machine now.
Have fun, and stay safe from the elements!
Available Versions
How to Install Cosmic Chaos on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set forge Loader
In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.1).
Install Mod
Open the mod browser in the dashboard and search for "Cosmic Chaos". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.20.1, 1.19.4
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Cosmic Chaos server crashes on startup – what to do?
Most common cause: wrong forge 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 (1.20.1). You can switch loaders with one click in the panel.
Is Cosmic Chaos compatible with forge?
Cosmic Chaos officially supports forge for Minecraft 1.20.1, 1.19.4. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Cosmic Chaos – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Cosmic Chaos 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 Cosmic Chaos with just one click on your server.