This modpack focuses on using a Biome's O Plenty map with an extensive questing system in order to progress in any way you want!
The recommended java arguments are as follows:
-XX:+UseG1GC -Xmx9G -Xms9G -Dsun.rmi.dgc.server.gcInterval=2147483646 -XX:+UnlockExperimentalVMOptions -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
You can adjust the amount of ram by replacing the 9 in "-Xmx9G -Xms9G" with the number of ram in Gigabytes you want to use, you may also want to go past 9 Gigabytes and go to 10. This should decrease microstutters and help performance.
However, I recommend testing before using the arguments if you run smoothly.
All quests are optional, however, they give you a good idea of how to get started with mods
There's a focus on letting the player decide which route they want to take, should they decide to focus on magic or technology. There's even the option for them to go through every possible focus and route.
In this modpack there are also several optimizations and configuration settings which are to allow the user a much better and stable experience while playing the pack.
Partial credit to the creators of the original modpack MC Eternal for a base for the mods and design.
Need help? Cosmo#3889 Discord
- Edition: Minecraft Java
- File type: .jar
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as MC Eternal (Cosmo Edition)-1.0.6.zip
- Download size: 22.3 MB
- Download link checked 24 Sept 2026 — working
These come from our own check of the pack file, not from the source page.