mineclonia-cd2025/MIGRATING.md

Migrating from MineClone 2 to Mineclonia

This document contains instructions for migrating a world from MineClone 2 to Mineclonia and things to be aware of when doing it. Migrating from MineClone 2 to Mineclonia is fully supported but not the other way around. If you want to try Mineclonia and have the option of going back, then we recommend taking a backup of your world first.

How to migrate

Go to the About tab in the main menu and click on the Open User Data Directory button. This opens a file browser. In the file browser, enter the worlds directory and then the directory which has the same name as the world you want to migrate. Open the world.mt file in a text editor. The file should look like this:

enable_damage = true
creative_mode = false
mod_storage_backend = sqlite3
auth_backend = sqlite3
player_backend = sqlite3
backend = sqlite3
gameid = mineclone2
world_name = world1
server_announce = false

Update gameid to mineclonia so the file looks like this:

enable_damage = true
creative_mode = false
mod_storage_backend = sqlite3
auth_backend = sqlite3
player_backend = sqlite3
backend = sqlite3
gameid = mineclonia
world_name = world1
server_announce = false

Then save the file and restart Minetest. Now the world should be playable when you select Mineclonia as the game.

Overworld depth increase

In Mineclonia 0.83.0 the overworld depth was increased from 64 to 128 nodes to match Minecraft 1.18. Mineclonia will automatically update worlds from MineClone 2 and older Mineclonia versions by replacing the bedrock layer and void underneath with newly generated mapchunks. Note that this will trigger regeneration of ores, caves, and structures up to y level -32, but that will only replace ground content nodes and not affect player-made structures. It can cause some oddities though, like duplicate end portals and other structures.

MineClone 2 features not in Mineclonia

Mineclonia does not have the following items in MineClone 2:

• Hamburgers

Such items will become unknown items when a MineClone 2 world is migrated to Mineclonia.