Overview
Mapper Base is a foundational library mod designed by Mapper to provide shared resources, items, and mechanics for a suite of mods, most notably EmbellishCraft and Road Stuff. While its primary purpose is to act as a dependency, it introduces several standalone features that impact survival gameplay, specifically a multi-stage steel production system and new world-generation materials like Bitumen.
In modern versions (1.20.1 and 1.21.1), the mod focuses heavily on balancing industrial progression. It offers a vanilla-friendly way to obtain Steel, which is more durable than Iron but less expensive than Diamond, while also providing the raw materials necessary for advanced road construction and decorative building blocks.
Guides
Step-by-step, in-game.
Recipes
Every recipe the mod adds, grouped by how it is made.
Items
B
F
I
P
R
S
Steel Axe
Steel Boots
Steel Chestplate
Steel Helmet
Steel Hoe
Steel Horse Armor
Steel Ingot
Steel Leggings
Steel Nugget
Steel Pickaxe
Steel Plate
Steel Rod
Steel Shovel
Steel SwordBlocks
Raw Steel Block
Steel Block
Steel Button
Steel Fence
Steel Fence Gate
Steel Pressure Plate
Steel Slab
Steel Stairs
Steel WallFrequently asked questions
How do I make a Steel Ingot?
What do I use Raw Steel for?
How do I craft a Steel Block?
How do I make a Flatter Hammer?
What is the Reinforced Flatter Hammer for?
How do I make Iron Plates and Iron Rods?
How do I craft Rivets?
How do I make a Steel Pickaxe?
What steel armor and tools can I craft?
How do I craft Steel Fences, Walls, and Gates?
How do I make Steel Stairs and Slabs?
How do I craft a Steel Button and Pressure Plate?
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Gallery
1 image from the Mapper Base Mod page.

Bolt
Ferrite
Flatter Hammer
Iron Plate
Iron Rod
Pig Iron Chunk
Raw Steel
Reinforced Flatter Hammer
Rivet