Cobalt Age
by Kole07139
A new Overworld mineral called cobalt is added by the mod, and it powers a signal network made of cobalt dust, cobalt wires and cobalt relays that works in a way similar to redstone.
What it does
Cobalt ore generates in the Overworld and comes with its own set of stone, deepslate, raw cobalt, ingot, nugget and block variants. Combining a cobalt nugget with redstone produces cobalt dust, the base of the new energy system, and a cobalt dust block completes the set. Cobalt Energy Blocks, or CEBs, come with the mod and act as the converter that bridges the two systems. A cobalt block is compatible with the beacon, and a new beacon screen adds cobalt ingots as a payment option.
The signal side offers up to 15 power levels, waterloggable wires and relays that carry signal vertically, plus water that breaks blocks or flows through dust networks. Its modern signal propagation can be toggled with a config option, and when turned off it reduces computation costs compared with vanilla redstone. Cobalt wires and relays keep the vanilla update order, so timing-dependent machines such as duplication builds still behave as they do in vanilla. The mod is incompatible with Redstone Blue, and it works alongside signal absorbers, signal emitters and Alternate Current.
Key features
Cobalt ore and materials
Overworld cobalt ore, deepslate ore, raw cobalt, ingots, nuggets and blocks, with a matching set of minerals blocks.
Cobalt dust signal system
Cobalt dust wires and relays carry up to 15 power levels, can be placed underwater and can run vertically.
Optional optimized propagation
A toggleable signal engine reduces computation cost, and the configuration can switch it off to match vanilla behavior.
Beacon screen update
The beacon gains a new screen that accepts cobalt ingots, and a cobalt block works with the beacon.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
How it compares
Cobalt Changes is a NeoForge mod for 1.21.1, under the MIT License and not open source, and it runs on client and server. Redstone++ is a Fabric mod for 1.21.10 – 1.21.11 with an open source license under the MIT License, also client and server. Redstone Underwater is a Fabric mod for 1.21.11 under the Mozilla Public License 2.0, open source, and it covers the same underwater redstone theme.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Cobalt Age | Fabric and NeoForge | 1.21.11 | Client and server | 2026-07-14 |
| Cobalt Changes | NeoForge | 1.21.1 | Client and server | 2026-05-24 |
| Redstone++ | Fabric | 1.21.10 – 1.21.11 | Client and server | 2026-01-09 |
| Redstone Underwater | Fabric | 1.21.11 | Client and server | 2026-02-09 |
Questions
Does Cobalt Age need Fabric API?
Which loaders does Cobalt Age support?
Does the server need Cobalt Age installed?
Can the optimized signal engine be turned off?
In the catalog
Cobalt Age is one of 8,499 Technology mods on ModsFinder, and one of 4,201 Technology mods for Fabric. 19,862 mods support Minecraft 1.21.11.
More from Kole07139
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What the author says
Cobalt Age adds a new Overworld mineral: Cobalt. The cobalt comes with its own set: Cobalt Ore (Stone and Deepslate), Raw Cobalt, Cobalt Ingot, Cobalt Nugget, Cobalt Block and Raw Cobalt Block.
Official listing
- Modrinth page
- modrinth.com/mod/cobalt-age
- Owner
- Kole07139
- Published
- 2026-07-14
- Updated on Modrinth
- 2026-07-14
- Facts verified
- 2026-10-15