
Modrinth · Minecraft mod
Periodica
The mod aims to make the game more difficult. That improves aspects of chemistry, it also extends the world depth to -128 blocks, and much of it is based on real chemical principles.
Quick answer
Which Periodica release should I use?
Periodica 0.0.6 targets 1.21.1 with NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Periodica required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Periodica 0.0.6 need?
0.0.6. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Periodica without breaking your instance.
Built for Periodica 0.0.6. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 0.0.6. It targets 1.21.1 with NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 0.0.6. It opens that exact file at the source.
About this project
What does Periodica add?
!Alpha version!
The mod doesn't add much content yet because it's in alpha.
- The mod adds new ore, some electronics, armor and tools, as well as blocks.
- There are plans to develop the mod and add a lot of content.
- There are still a lot of things without functionality.
- You can find information about some items in the gallery.
- I try to make the mod as realistic as possible.
In the new version of the mod, the world's lower limit is now -128 blocks. Ores have become less frequent, but the quantity within a single deposit has increased. In caves at the new depths, you may encounter familiar biomes as well as tougher mobs; the deeper you go, the stronger the hostile mobs become. A mod that improves certain aspects of chemistry, much of it based on real-life chemistry.
Some ingots can't be obtained simply by smelting them in a furnace; chemical reactions are required. Update 0.0.4 added a workbench where you can upgrade your equipment (currently, only steel and titanium armor can be upgraded, and only with tungsten).
Since work on JEI support is still ongoing, I decided to release a video with crafts:
https://youtu.be/uQAWAE1oecY
Planned for the near future:
- Compatibility with Create
- Making the game even harder
- Customizable mod settings
- New cave biomes
- Slightly increasing the difficulty of the Nether
Project description from Modrinth.
Pick your setup
Periodica by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Periodica versions and loaders
0.0.6
periodica-0.0.6-neoforge-1.21.1.jar
11 Aug 2026
0.0.5
periodica-0.0.5-neoforge-1.21.1.jar
17 Apr 2026
0.0.4.1
periodica-0.0.4.1-neoforge-1.21.1.jar
5 Apr 2026
0.0.4
periodica-0.0.4-neoforge-1.21.1.jar
4 Apr 2026
0.0.3
periodica-0.0.3-neoforge-1.21.1.jar
29 Mar 2026
0.0.2
periodica-0.0.2-neoforge-1.21.1.jar
25 Mar 2026
0.0.1
periodica-0.0.1-neoforge-1.21.1.jar
22 Mar 2026
Looking for an older file? The official Modrinth project page is in Resources.