Edge of the World

Spoiler warning for post game material

Vision of the End is a post game biome that appears after defeating the Moon Core. The biomes theme is a darker version of The Endless Caverns. 1 Tile of the world is infected with it for every 2.5% completion score(40 tiles total). Corrupted tiles are uncleared, but do not reduce completion percent, allowing you to increase your completion score by finishing each room. Vision of the End is a easier variant of the Edge of the World, and is just an on map version of it. There is no boss and enemies deal 2 damage.

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The Edge of the World is a post game biome, and serves as the true final biome. It appears upon getting 100% completion or more on a save. A hole will appear at the bottom of the map, and leads into the Edge. It is the true version of the Vision of the End, and withholds the most dangerous enemies in the game. With the generation of the edge, 6 more upgrades and 4 more checkpoints rooms are added below. There are 2 mini bosses, and one major boss, who's defeat will allow you the best ending. Enemies, like in the Vision, deals 2 damage.