Affects Version/s: Minecraft 15w39c
Fix Version/s: Minecraft 15w40a
The new biome “The Void”, which can only generate in Superflat worlds, is required to get the achievement Adventuring Time, effectively making it impossible to obtain without cheats.
Steps to reproduce:
1. Create a non-void world with cheats enabled.
2. /achievement give achievement.theEnd
3. Close the world.
4. Insert the following into your stats.json file, replacing the existing "achievement.exploreAllBiomes" field:
5. Reopen the world. Note that you didn't get Adventuring Time.
6. Close the world again.
7. Add "The Void" to the list of biomes in your stats.json:
8. Reopen the world. You will get the achievement.