Installation for the new launcher[]
- Open the new launcher and make sure the version of Minecraft the mod requires is already installed.
- Click "Edit Profile" in the launcher, then open the game directory.
- Go into the subfolder "versions".
- Rename the folder for the version you require to something else. In this example, rename "1.6.2" to "1.6.2_Modded".
- Rename "1.6.2.jar" to "1.6.2_Modded.jar".
- Rename "1.6.2.json" to "1.6.2_Modded.json".
- Open "1.6.2_Modded.json" with a text editor an replace "id":"1.6.2" with "id":"1.6.2_Modded", save the file and close it.
- Open the class files from the mod with an archiver such as WinRAR or 7-Zip and copy-paste the files into 1.6.2_Modded.jar.
- Delete META-INF.
- Start the new launcher.
- Click "Edit Profile"
- In "Use Version", select "1.6.2_Modded".
- Click Save Profile.
- Login and play as normal.