Cataclysm Expeditions

Cataclysm Expeditions

Cataclysm Expeditions is an addon mod for L_Ender's Cataclysm. It removes the normal structure generation and adds a hub world where players can group up and generate the structures in a rpg style fashion.

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Screenshots

Cataclysm Expeditions Screenshot 1
Cataclysm Expeditions Screenshot 2
Cataclysm Expeditions Screenshot 3
Cataclysm Expeditions Screenshot 4

About this Mod

Cataclysm Expeditions

Cataclysm Expeditions is an addon mod for L_Ender's Cataclysm. It removes the normal structure generation and adds a hub world where players can group up and generate the structures in a rpg style fashion.

You start in this mod by crafting a Hub Anchor which can take you to the hub.
(If you are a server owner or modpack dev and disable this recipe in the config, you have to provide your own way of getting to the hub)
Hub Anchor Recipe

In the hub you can find several portals that lead to the structures.
When you enter a portal, the structure will generate fresh in a dedicated dimension.
Once ready, other players have 30 seconds (configurable) to join your lobby before being teleported together.

Config

#Maximum number of players allowed in an expedition. The UI might not look good with more than 4 players
# Default: 4
# Range: 1 ~ 100
maxExpeditionPlayerCount = 4
#Number of ticks that an expedition should be open for others to join. Is displayed as seconds ingame
# Default: 600
# Range: > 1
expeditionLobbyTtl = 600
#Number of ticks that a player has to access the same one again. Is displayed as hours, minutes and seconds ingame
# Default: 1728000
# Range: > 1
expeditionCooldown = 1728000
#Distance between the expedition structures in chunks
# Default: 100
# Range: > 10
distanceBetweenExpeditionStructures = 100
#Enables the recipe for the hub anchor that is needed to enter the hub. If you disable this setting, you will have to implement another way to get to the hub yourself
hubAnchorRecipeEnabled = true
#Number of chunks of a structure that are generated in one batch. Higher values lead to longer loading times but also lower lag spikes
# Default: 2
# Range: 1 ~ 5
structureGenerationBatchSize = 2

Available Versions

Cataclysm Expeditions 1.1.0release
MC 1.21.1neoforge
June 6, 2026
Cataclysm Expeditions 1.0.0release
MC 1.21.1neoforge
January 19, 2026

How to Install Cataclysm Expeditions on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set neoforge Loader

In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).

3

Install Mod

Open the mod browser in the dashboard and search for "Cataclysm Expeditions". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

neoforge

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

Cataclysm Expeditions 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 (1.21.1). You can switch loaders with one click in the panel.

Is Cataclysm Expeditions compatible with neoforge?

Cataclysm Expeditions officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Cataclysm Expeditions – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Cataclysm Expeditions 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.

Rent Modded Server

Install Cataclysm Expeditions with just one click on your server.

Recommended RAM
4 GBab €8/mo
Min. 3 GB | +1 GB pro 8 Spieler
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NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required

Supported Versions

1.21.1