My child has a Minecraft installation and wants to play two mods:

  1. Lucky Blocks
  2. Orespawn

Currently, there is a profile,

  • which runs under Minecraft version 1.8 and
  • uses Forge

I installed Lucky Blocks and it worked.

But Orespawn requires Minecraft 1.7.10 and Forge

How can I install a second Forge for Orespawn, without compromising the already installed Forge for Lucky Blocks?

  • 1
    Welcome to Arqade @Dmitri, but we don't support modded Minecraft support. But since it's not a crash log (like the other ones, if you haven't already noticed), I'll have a crack at it for you.
    – aytimothy
    Commented Oct 11, 2015 at 10:55
  • MultiMC is a launcher created with this specific purpose in mind.
    – SF.
    Commented Dec 9, 2020 at 10:47

2 Answers 2


To answer your question: No, you can't have two versions of Forge installed over the same Minecraft installation, and neither can you have a mod compiled for a future/previous version of Forge run alongside those that has been compiled for said version.

So why?

Forge in itself, is a modification to the entire coding of Minecraft, allowing players to inject new code (hence mods) easily.
But because the structure of Minecraft's internal settings change from update to update, many methods get depreciated or moved (means things get messy).

That's why mods compiled for a release of Minecraft cannot run on another one.

So, what's the solution?

To simply put it, downgrade. Until there is an update to the mods (in this case, OreSpawn), that is your only option.

Seeing that you're trying to use Orespawn and Lucky Blocks, and that both mods have a 1.7.10 version, your best option is to downgrade back to 1.7.10 and install their respective versions of the mod for it.

As for missing features, you simply have to put up with it, since it's not possible to have a newer version of a mod run on an older version of Minecraft.

Minecraft Forge for 1.7.10 - Minecraft Forge
Orespawn for 1.7.10 - Original Website | Direct Download Link
Lucky Blocks Mod for 1.7.10 - Original Website | Direct Download Link

Note: When I say 'version/release of forge', I don't mean each individual build, but the targeted Minecraft version for them.

Seeing that you're proficient in Java on StackOverflow, you could (if the mods are open-sourced and you have knowledge in Minecraft modding) attempt to port the older version of the mod and make it (OreSpawn) compatible with 1.8's release(s) of Forge allowing you to utilize the newer version of Lucky Blocks and its new features (if any).

  • can't you install Minecraft in 2 different directories since 1.6? I haven't played minecraft in so long so I'm probably wrong.
    – ZomoXYZ
    Commented Oct 11, 2015 at 16:13
  • @Jaketr00 You can, but he's trying to merge two different releases of Minecraft, not run two different installs of Minecraft.
    – aytimothy
    Commented Oct 11, 2015 at 22:44

Use twitch, it alows u to use various amounts of profiles for minecraft with diffrent verisons.

  • I assume you mean the Twitch App, and it doesn't specify you can use it for multiple accounts and/or/ installations.
    – Joachim
    Commented Aug 26, 2019 at 7:03
  • When you say you can use Twitch, do you mean using the Twitch desktop app to run multiple profiles? The reason I'm asking this is because if it's for @Dimitri's child, then it would be violating the Terms Of Service for the child to use Twitch. Hope this helps!
    – OttersMeep
    Commented Dec 8, 2020 at 17:25

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