Oganesson

Oganesson

Finally, bring the full periodic table to Minecraft!

by
989 Downloads
fabricequipmentgame-mechanicsworldgen
Rent Server with this Mod

Screenshots

Lithium element

About this Mod

This is a work in progress and is currently in alpha stage. Not all features stated in the Purpose section have been implemented yet; refer to the Progress section for details.

Purpose

The goal is to add all obtainable elements of the periodic table to the game.

The secondary goal is to make them available in a realistic and vanilla-like way, to add common alloys and mixtures, and allow the player to craft tools, armor, blocks, and other objects with all the available substances.

Progress

Roadmap
Move from Yarn to Mojang mappings
[████████████████████] 100%

Develop a new tier system for weapon attack stats
[████████████████████] 100%

Develop a new tier system for tool/weapon/armor durability/enchantability stats
[████████████████████] 100%

Develop a new tier system for armor protection/toughness/KBres stats
[████████████████████] 100%

Develop a new tier system for element rarity
[██████████          ] 50%

Develop a new tier system for block hardness/time to mine, and the tool level required
[                    ] 0%

Add "realistically" obtainable elements
[░██                 ] 17% (15/87 - 5 already in vanilla)

Add ways of obtaining obtainable elements
[░                   ] 7% (6/87 - 5 already in vanilla)

Add main alloys
added copper

Add corresponding tools/weapons/armor

Add "missing" Minecraft blocks
[████████            ] 40% (28/ a lot)

Add more foods
[                    ] 0%

So far, I've added the elements Lithium, Beryllium, Boron, Magnesium, Aluminium, Phosphorus, Sulfur, Titanium, Manganese, and Tin. I also added rock salt, a kiln furnace, and a refining converter.

  • Lithium explodes in contact with water
  • Rock salt is found on sandy or rocky coasts (gives mostly table salt, but also a small amount of magnesium salt required to make stuff)
  • Kiln cooking recipes are compatible with JEI
  • Refining converter recipes are compatible with JEI
  • Iron now oxidizes like Copper

You can make:

  • Beryllium sword, tools, and armor
  • Boron sword, tools, and armor
  • Aluminium sword, tools, and armor
  • Magnesium sword and tools
  • Manganese sword, tools, and armor
  • Titanium sword, tools, and armor
  • Copper sword, tools, and armor
  • Bronze sword, tools, and armor
  • Tin sword and tools
  • Bone sword and tools
  • Brick sword and tools
  • Lapis sword and tools
  • Amethyst sword and tools
  • Emerald sword, tools, and armor
  • Quartz sword and tools

See changelog for full details.

How are the values computed for the tiers?

Temperature tiers

Parallel tier system to hardness, based on a tier list of furnaces from slow and low melting point metals to fast and high melting point metals.

  • Tier I: Kiln (maps to irl temp: <1399K), gives access to copper & lower melting point metals
  • Tier II: Furnace (<1811K), allows melting up to iron
  • Tier III: Blast Furnace (<2349K), allows melting up to boron
  • Tier IV: Refining Converter (<2899K), allows melting up to molybdenum
  • Tier V: Redstone Arc Furnace (<3699K), allows melting up to tungsten
  • Tier VI: Cubic Press (<5000K), allows the manufacture of synthetic diamonds and similar stuff

Rarity

Elements are now more closely mapped to their IRL rarity in Earth's crust.
For example, diamonds are way harder to find. Copper is rarer than iron, but doesn't need a furnace tier as high due to its lower melting point.

  • Note that the generation of some elements is based on the biome or stone type.
  • Density also affects the depth of the ores.
  • Very electronegative elements (like sulfur) will also be generated in the Nether.
  • Elements that cannot be found on Earth but are common in other space objects (moons, meteors) will be generated in the end.

Damage

The Damage of the sword is mapped linearly to the Mohs scale of the element.

However, density applies a modifier; the denser the material, the higher the damage on hit, but the lower the speed of attack (DPS remains the same).

For Example, iron and plutonium have the same value on the Mohs scale, so they deal the same DPS. However, the iron swords allow for fast and light attacks, while the plutonium ones deal a lot of damage per hit but are very slow.

The damage of the axe relative to the sword follows vanilla logic, same for other tools.

Enchantability

  • Ench = ElecNeg * 10

Enchantability is mapped onto the Electronegativity of real-life elements (making diamond more enchantable than gold, though diamond is way harder to obtain and higher tier than vanilla).

As a bonus for hard work and reflecting the usual IRL reduced corrosion, alloys sum the Enchantability of compounds, for example: copper 19, tin 20 -> bronze 39.

Protection

  • Prot = Bulk / 20 (with Bulk in GPa)

Protection is mapped to the Bulk Modulus.

This implies that some metals/alloys (such as Osmium) can have a slightly higher protection value than diamond. However, diamond still deals more damage due to its high Mohs scale value.

Note: If the resulting protection value is less than 1 per piece, the material will not be craftable into armor (example: magnesium, bone, etc.).

Knockback resistance

  • KBres = density / 10 (with density in g/cm^3 and KBres in percent)

Knockback resistance is mapped to the density. Having multiple armor pieces adds up.

Armor Toughness

Armor Toughness is a mix; it is tweaked to favor alloys and tier progression.

Durability

  • Dura = Mohs * Bulk / 2 (with Bulk in GPa)

The durability is mapped to the product of the Mohs scale and the Bulk modulus.

License

This mod is licensed under the MIT License, with the following exceptions:

The following files are licensed under CC BY-NC 4.0:

  • src/main/resources/assets/oganesson/textures/block/sulfur_block.png (by Builderb0y)
  • src/main/resources/assets/oganesson/textures/item/sulfur.png (by Builderb0y)

Credits

Sulfur item and block textures are from BigGlobe by Builderb0y under the CC BY-NC 4.0 License

Bronze and tin textures borrowed from the Bronze mod by June (MIT)

The Rusted Iron mod by Lemon is re coded from scratch for Fabric 1.21.1 in Oganesson (MIT)

The Legend's Missing Blocks mod by LegendStudios is re coded from scratch for Fabric 1.21.1 in Oganesson (MIT)

Available Versions

Oganesson 1.6.12alpha
MC 1.21.1fabric
December 1, 2025
Oganesson 1.5.7alpha
MC 1.21.1fabric
November 27, 2025
Oganesson 1.4.3alpha
MC 1.21.1fabric
November 27, 2025
Oganesson 1.3.8alpha
MC 1.21.1fabric
November 27, 2025
Oganesson 1.2.7alpha
MC 1.21.1fabric
November 27, 2025

How to Install Oganesson on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set fabric Loader

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

3

Install Mod

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

Compatibility

Mod Loaders

fabric

Minecraft Versions

1.21.1

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Oganesson server crashes on startup – what to do?

Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 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 Oganesson compatible with fabric?

Oganesson officially supports fabric for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Oganesson – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Oganesson 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 Oganesson with just one click on your server.

Recommended RAM
6 GBab €12/mo
Min. 4 GB | +1 GB pro 5 Spieler
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NVMe SSD Storage
DDoS Protection included

Details

License
MIT License
Server-side
Required

Supported Versions

1.21.1