Prerequisites:
- MultiMC
- a UUID and username from https://namemc.com/username
Replace /home/user/.local/share/multimc/accounts.json
with this
{
"accounts": [
{
"accessToken": "PLEASE.IGNORE.THIS.TOKEN.TESTING.MOD.STUFF",
"activeProfile": "47f78584c76c419192fd8c943af13054",
"clientToken": "PLEASE.IGNORE.THIS.TOKEN.TESTING.MOD.STUFF",
"profiles": [
{
"id": "47f78584c76c419192fd8c943af13054",
"legacy": false,
"name": "Fji"
}
],
"user": {
"id": "aa1ef1a0330b349ddc187da1237e49cf"
},
"username": "[email protected]"
}
],
"activeAccount": "[email protected]",
"formatVersion": 2
}
Replace 47f78584c76c419192fd8c943af13054
with your UUID and Fji
with your username
Now once saved, open MultiMC and hit "Launch Offline" and then hit ok, and Minecraft will launch logged into this account. Keep in mind, Multi Player won't work.