Minecraft Forge by LexManos, Eloraam, Spacetoad
Minecraft Forge is a common open source API allowing a broad range of mods to work cooperatively together. It allows many mods to be created without them editing the main Minecraft code.
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Numina by MachineMuse
A common library of useful functions and utilities for dealing with Minecraft's source code.
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PowerCrystals Core by PowerCrystals, AtomicStryker, skyboy026
Core functionality for Power Crystals' mods.
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RadixCore by WildBamaBoy
A base framework for quickly creating and maintaining fully featured mods.
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Red Gear Core
Red Gear Core is primary a library of classes used by most mods created by Team Red Gear.
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mod_MMM_MMMLib
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mod_bspkrsCore
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