diff --git a/World.md b/World.md
index 5e5b9ce..34aa475 100644
--- a/World.md
+++ b/World.md
@@ -17,6 +17,7 @@ Each world is a grid of 16x16 tiles. The middle part of the grid is generated ra
 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1
 1 1 1 1 1 1 2 2 2 2 1 1 1 1 1 1
 ``` 
-0: These tiles are always plain tiles
-1: These tiles are always wall tiles
-2: These tiles are always plain tiles and Biomass will never spawn here
\ No newline at end of file
+0: These tiles are always plain tiles  
+1: These tiles are always wall tiles  
+2: These tiles are always plain tiles and Biomass will never spawn here  
+*: Randomly generated