CurseForge · Minecraft mod
Mapper Base
A mod that provides basic elements for all my other mods.
This page is having a moment, so a few details may be a little behind.
Quick answer
Which Mapper Base release should I use?
Mapper Base mapperbase-1.21.1-7.1.1.0.jar targets 1.21.1 with NeoForge. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. No extra mods listed for this file.
Where it goes
Is Mapper Base required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
The source does not explicitly classify this release as client-only or server-only.
What else does Mapper Base mapperbase-1.21.1-7.1.1.0.jar need?
mapperbase-1.21.1-7.1.1.0.jar. 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 Mapper Base without breaking your instance.
Built for Mapper Base mapperbase-1.21.1-7.1.1.0.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use mapperbase-1.21.1-7.1.1.0.jar. 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
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside mapperbase-1.21.1-7.1.1.0.jar. It opens that exact file at the source.
About this project
What does Mapper Base add?
Announcement
Mod updated for NeoForge 1.21.1.
What is Mapper Base?
Mapper Base is a library mod that provides basic elements and functionalities to my other mods. It's literally named after my nickname, nothing more.
Since 1.17.1 the only notable addition for players is steel. Everything else is just code under the hood used by EmbellishCraft and Road Stuff.
For 1.15/1.16 versions the mod provides:
a new material, steel, with associated tool and armor sets. Steel is similar to iron in terms of efficiency but lasts longer.
a new material, raw bitumen, that generates in the world and allows making asphalt.
a new fuel, bituminous coal. Can be crafted by surrounding a coal with 8 raw bitumen in a 3x3 crafting grid. 8 pieces of bituminous coal will be created. 8 bituminous coals will smelt 10 items (2 more than one coal). This gives bitumen an alternative use as its abundance can quickly fill your chests if you mine all of it.
asphalt blocks, a new decorative block to create very basic roads.
concrete blocks, a new decorative block for buildings and roads.
Please only download this mod on CurseForge. Other sources like the mod rehost websites may host malicious contents in the provided files, along with wrong or mislabeled versions. They must be avoided for your safety.
How to craft steel
In 1.21.1 the craft changed a bit, requiring blasting iron into pig iron chunks, and crushing a couple of it with the flatter hammer to make raw steel that then needs to be blasted again.
1.20 and below:
Crafting steel is a long and expensive process if you use the basic setup provided by Mapper Base. With other mods such as Immersive Engineering or Mekanism more complex but way more efficient setups are available.
The steps to produce steel ingots are:
• blasting iron ingots in a vanilla blast furnace (this consume a whole coal per ingot). This will produce ferrite.
• craft 3 ferrite into raw dust
• blast raw steel into a steel ingot (this consume ½ coal)
This only require a vanilla blast furnace. However each steel ingot requires 3 iron ingots and almost 4 coal and this is where setups from other mods are becoming interesting. Will you want a quick but inefficient setup or a more complex but way more efficient one from other mods? It's up to you!
Where to find bitumen (1.15 / 1.16 only)
Bitumen comes in rarer but bigger pockets compared to regular ores. However they can only be found at sea level, in biomes that are not too hilly or mountainous.
The best way is to look around rivers or coasts, or search for caves close to the surface. Otherwise simply dig near the surface around sea level to find pockets.
Configuration
mapperbase-client allows you to enable a Tag viewer: when enabled, hold CTRL while hovering an item with your mouse to see its tags in the tooltip (useful for modders and pack makers)
mapperbase-common allows you to tweak raw bitumen generator parameters: you can increase / decrease vein sizes, occurrences or simply disable generation (1.15 / 1.16 only)
Currently, the mods that require Mapper Base to be installed are EmbellishCraft and Road Stuff.
This mod is only intended to work with Forge. Fabric is not supported neither planned at this time.
Project description from CurseForge.
Pick your setup
Mapper Base by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
1.20.1
1 loader build1.19.2
1 loader build1.18.2
1 loader build1.18.1
1 loader build1.17.1
1 loader build1.16.5
1 loader build1.16.4
1 loader build1.16.3
1 loader build1.16.1
1 loader build1.15.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Mapper Base versions and loaders
mapperbase-1.21.1-7.1.1.0.jar
23 May 2025
mapperbase-1.21.1-7.0.0.0.jar
15 Apr 2025
mapperbase-1.20.1-6.0.0.0
mapperbase-1.20.1-6.0.0.0.jar
20 Oct 2024
mapperbase-1.19.2-5.0.0.2
mapperbase-1.19.2-5.0.0.2.jar
6 May 2023
mapperbase-1.18.2-4.0.1.0
mapperbase-1.18.2-4.0.1.0.jar
26 Aug 2022
mapperbase-1.18.1-4.0.0.1.jar
13 Mar 2022
mapperbase-1.18.1-4.0.0.0.jar
23 Jan 2022
mapperbase-1.17.1-3.0.0.0.jar
16 Jan 2022
mapperbase-1.16.5-2.4.0.0.jar
13 Jun 2021
mapperbase-1.16.4-2.3.0.0.jar
2 Dec 2020
mapperbase-1.16.3-2.2.0.0.jar
29 Oct 2020
mapperbase-1.16.3-2.1.0.1.jar
7 Oct 2020
Looking for an older file? The official CurseForge project page is in Resources.