FoundBiome

This plugin uses the existing stat files for your world, so you don't need to explore biomes again once installing this. It will be accurate immediately.

Commands

• /fb seen - List all biomes you've seen in your world
• /fb unseen - List all biomes you haven't seen
• /fb current - Show the name of the current biome

The plugin will also send you a message when you've entered a new biome you haven't seen before.

I made this while going for the "Adventuring Time" achievement.