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Hephaestus is a Fabric port of the Forge mod Tinkers' Construct.
Hephaestus is a mod about putting tools together in a wide variety of ways, then modifying them until they turn into something else. The tools never disappear and can be named and changed to your heart's desire. Once you make them, they're yours forever. Many different materials can be used to make your tools.
This mod doesn't add anything besides making it compatible with Fabric, however there are plans later to add some exclusive content and possibly tweak some of the current content. For more info about the mod itself see the Tinkers' Construct page.
1.18.2 builds have critical bugs that may ruin game-play experience. They are effectively archived.
No support will be given if you are using a 1.18.2 build
A 1.19.2 PORT IS NOT HAPPENING!
I don't have the time and motivation to do 1.19.2.
So stop harassing me to support older versions.
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[1.18.2-3.5.2.312] Hephaestus 1.18.2-3.5.2.312 LTS
by alphamode on Oct 15, 2026
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LTS release for 1.18.2 providing bug fixes
- Fix not being able to interact with blocks while using tinkers armor
- Fix Looting and Luck not increasing mob drops
- Fix slimeshell pockets modifier
- Fix overgrowth resetting breaking animation with overslime
[1.20.1-3.6.4.305] Hephaestus 1.20.1-3.6.4.305
by alphamode on Oct 15, 2026
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- Fix dedicated server crash
[1.20.1-3.6.4.304] Hephaestus 1.20.1-3.6.4.304
by alphamode on Oct 15, 2026
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- Fixed smeltery not using the correct amount of liquid fuel (Before it used around 50 droplets per tick should now be around 4050 droplets per tick).
- Fixed heater comsuming fuel when only 1 fuel is present without adding fuel to your melter.
- Fix nuggets and most ores not being able to be melted.
- Fixed multiple visual issues with the guide books.
- Fixed a crash when entity melting in an empty smeltery with a pipe attached to a drain.
- Fixed fluid duplication when extracting fluids from drains.
- Fixed Ducts ignoring there filters when inserting.
- Fixed plate amor requiring all pieces to have the golden modifier to prevent piglin aggro (You now only need one).
- Fixed tables not dropping there items when broken.
- Possible fix for trying to join a server and getting "Attempted to load a modifier before dynamic modifiers are loaded".
- Re-enabled JEI support.
- Fixed items being voided when quick crafting with the crafting station with a side container.
[1.20.1-3.6.4.287] Hephaestus 1.20.1-3.6.4.287
by alphamode on Oct 15, 2026
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- Fixed logs not rotating when stripped with Hand axe or Broad Axe.
- Fixed plate chestplate causing multiple interactions per click when equiped.
- Updated to latest Porting-Lib and Fabric API
[1.20.1-3.6.4.279] Hephaestus 1.20.1-3.6.4.279
by alphamode on Oct 15, 2026
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- Fixed wearing a brute/zombified piglin head causes the game to crash [(K0LALA)](https://github.com/K0LALA).
- Fixed a bug when inventory is full, no chestplate is on but the piggy backpack doesn't work
- Fix ender dragon scale drop from player explosion [(sarim)](https://github.com/sarim)
[1.20.1-3.6.4.274] Hephaestus 1.20.1-3.6.4.274
by alphamode on Oct 15, 2026
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Fixed crash with bumblezone
[1.20.1-3.6.4.273] Hephaestus 1.20.1-3.6.4.273
by alphamode on Oct 15, 2026
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Fixed issue with not being able to pour liquids into casting channels
[1.20.1-3.6.4.271] Hephaestus 1.20.1-3.6.4.271
by alphamode on Oct 15, 2026
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- Fixed crash when taking items from part builder
[1.20.1-3.6.4.270] Hephaestus 1.20.1-3.6.4.270
by alphamode on Oct 15, 2026
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- Fixed not shields taking durability damage when blocking attacks
[1.20.1-3.6.4.266] Hephaestus 1.20.1-3.6.4.266
by alphamode on Oct 15, 2026
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- Should fix piercing damage not working
- Fixed double jump modifier not working
[1.20.1-3.6.4.261] Hephaestus 1.20.1-3.6.4.261
by alphamode on Oct 15, 2026
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To see full change log go [here](https://modrinth.com/mod/tinkers-construct/version/3.6.4.113))
Expect some possible bugs with this very so tread with caution
- Rewrote transfer (expect some bugs)
- Some items modifiers relating to containing items should work now.
Expect some possible bugs with this very so tread with caution
[1.20.1-3.6.3.241] Hephaestus 1.20.1-3.6.3.241
by alphamode on Oct 15, 2026
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Fix client transfer issues
[1.20.1-3.6.3.240] Hephaestus 1.20.1-3.6.3.240
by alphamode on Oct 15, 2026
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Fixed tool background displays way outside of the GUI.
Fixed Mangrove, Cherry and Bamboo wood couldn't be used for Wooden parts.
Fixed Client crash while trying to render Hephaestus potion fluid.
Fixed All Scorched/Seared Duct/Drain/Chute variants render as a brick variant in the world
Fixed Mangrove, Cherry and Bamboo wood couldn't be used for Wooden parts.
Fixed Client crash while trying to render Hephaestus potion fluid.
Fixed All Scorched/Seared Duct/Drain/Chute variants render as a brick variant in the world
[1.20.1-3.6.3.232] Hephaestus 1.20.1-3.6.3.232
by alphamode on Oct 15, 2026
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Fixed issue with side inventories
[1.20.1-3.6.3.231] Hephaestus 1.20.1-3.6.3.231
by alphamode on Oct 15, 2026
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Fixed crash when looking at certain models in the inventory
[1.20.1-3.6.3.229] 1.20.1-3.6.3.229
by alphamode on Oct 15, 2026
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Modifiers can now be favorited with REI
Item modifiers that use a item storage such as tool belt should now work.
Some internal fixes related to client tool interactions.
Fixed Kama not being able to harvest blocks
Item modifiers that use a item storage such as tool belt should now work.
Some internal fixes related to client tool interactions.
Fixed Kama not being able to harvest blocks
[1.20.1-3.6.3.222] Hephaestus 1.20.1-3.6.3.222
by alphamode on Oct 15, 2026
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Switch to REA for reach attributes fixing compatibility with a couple of mods
[1.20.1-3.6.3.221] Hephaestus 1.20.1-3.6.3.221
by alphamode on Oct 15, 2026
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Update to 1.20.1
[1.19.4-3.6.3.204] 1.19.4-3.6.3.204
by alphamode on Oct 15, 2026
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- Fixed Bucketing and Melting modifiers
- Fixed Soulbound modifier not working
[1.18.2-3.5.2.155] 1.18.2-3.5.2.155
by alphamode on Oct 15, 2026
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Fix Kama not being able to shear sheep and possible other entity related interactions
[1.18.2-3.5.2.150] 1.18.2-3.5.2.150
by alphamode on Oct 15, 2026
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Added REI compact to allow recipe transfer to work on work stations
[1.18.2-3.5.2.149] 1.18.2-3.5.2.149
by alphamode on Oct 15, 2026
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<h3 class="text-lg">Same patch notes as <a title="3.5.2.40" href="https://www.curseforge.com/minecraft/mc-mods/tinkers-construct/files/3998764">3.5.2.40</a></h3>
<p> </p>
<p>Fabric patch notes:</p>
<ul>
<li>Fix "Bouncy" ability not negating fall damage.</li>
<li>Fix not being able to interact with entities while wearing a Hephaestus chestplate.</li>
</ul>
<p> </p>
<p> </p>
<p>Fabric patch notes:</p>
<ul>
<li>Fix "Bouncy" ability not negating fall damage.</li>
<li>Fix not being able to interact with entities while wearing a Hephaestus chestplate.</li>
</ul>
<p> </p>
[1.18.2-3.5.1.145] 1.18.2-3.5.1.145
by alphamode on Oct 15, 2026
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Initial Fabric release
