Re: How to install forge on multiple versions using the new launcher

[Galvanize]

Copy %appdata%/.minecraft/versions/1.5.2

to:

%appdata%/.minecraft/versions/1.5.2-Forge

Inside this folder:

Rename from '1.5.2.jar' to '1.5.2-Forge.jar'

Rename from '1.5.2.json' to '1.5.2-Forge.json'

Install forge into 1.5.2-Forge.jar like you always would for 1.5

Edit 1.5.2-Forge.json to change the 'id' value from "1.5.2" to "1.5.2-Forge"

 

Create a new profile in the launcher, and change it's game directory to %appdata%/.minecraft/versions/1.5.2-Forge

 

Now this is hard and complicated but i'm pretty sure it'll work.

Forge for 1.5.2 came out before the new launcher existed so the install is kind a pain.

 

If you can't figure it out, then go try installing MultiMC it should be able to setup everything for you it's just a different launcher.

 

Sorry to bring this up again, I know this is an old thread but this is exactly what I would like to do.

So I instaled Forge 1.6.4 in the new launcher 1.3.7 and added some mods. But I have another modpack from 1.5.2 that I would like to run from another profile.

Correct me if I'm wrong but, when I install Forge 1.5.2, it creates a new profile (so far so good) but will look for mods in the same directory as the newer version correct?

Both will try to find mods from ".minecraft/mods/". I read something about creating a new game directory, but idk if that is the case since both are in the versions folder from the same game directory.

 

Again this must be a stupid question, I'm sorry but I just started to learn these things a couble days ago.

 

Edit: I installed both Forge versions from the the installers.

1.6.4: http://files.minecraftforge.net/maven/net/minecraftforge/forge/1.6.4-9.11.1.965/forge-1.6.4-9.11.1.965-installer.jar

1.5.2: http://files.minecraftforge.net/minecraftforge/minecraftforge-installer-1.5.2-7.8.1.737.jar

[loordgek]

answer to your problem 

 

it is not recommended to run 954 and above use 953

 

[luacs1998]

@loordgek shut up, there's 965 and that's usable.

@OP I recommend direwolf20's video for running multiple modded mc versions in parallel, it's in the eaq.

[Galvanize]

answer to your problem 

 

it is not recommended to run 954 and above use 953

Thank you very much, I had no idea the game dir option created another instance of the game.