Lots of Heavy Cores
by axell
Lots of Heavy Cores changes how often a Heavy Core drops from an ominous vault, so a single vault can yield several cores.
What it does
The mod raises the overall chance that an ominous vault gives more than one heavy core per opening. Each vault still follows its normal reward table, and the extra cores come from the same vault rather than from a separate source. The changes apply on a Fabric client and server, and the client can connect to a server running the mod without installing anything extra.
The mod is aimed at players who want the vault reward to feel worth the effort, and at server owners who want heavy cores to be a steadier resource. It is lightweight and works offline. Heavy Core Automation is part of the same effort, making the ominous vault reward feel more rewarding in practice. Files are for Fabric only, and builds target 1.21.11 alone.
Key features
Multiple heavy cores per vault
Ominous vaults have a higher overall chance of yielding several heavy cores in a single opening.
Offline operation
The mod works offline, so single-player worlds do not need a connection to use its changes.
Vanilla client compatibility
Players on unmodified vanilla clients can join a server that runs the mod.
Lightweight design
The mod is described as lightweight and safe, adding little to the work the game already does.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Craftable Heavy Core by sumbaii999 is released under the MIT License and runs on Fabric, Forge, NeoForge and Quilt for 1.21 – 26.2, with a server-required environment. Rarer Heavy Core is licensed as All rights reserved and covers 1.21 – 1.21.11 on the same four loaders, server required and client optional.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Lots of Heavy Cores | Fabric | 1.21.11 | Client and server | 2025-12-27 |
| Craftable Heavy Core | Fabric, Forge, NeoForge and Quilt | 1.21 – 26.2 | Server required, client optional | 2026-07-27 |
| Rarer Heavy Core | Fabric, Forge, NeoForge and Quilt | 1.21 – 1.21.11 | Server required, client optional | 2026-03-19 |
Questions
Does the server need the mod?
Can players join a server without installing the mod?
In the catalog
Lots of Heavy Cores is one of 17,631 Equipment mods on ModsFinder, and one of 8,894 Equipment mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from axell
Similar mods
What the author says
Heavy Core Automation ensures that every ominous vault feels rewarding and worth the effort.
Official listing
- Modrinth page
- modrinth.com/mod/lots-of-heavy-cores
- Owner
- axell
- Published
- 2025-12-27
- Updated on Modrinth
- 2025-12-27
- Facts verified
- 2026-10-15