underground ideas

1 files changed, 8 insertions, 2 deletions

diff --git a/design.md b/design.md
index fdb9f26..7de383c 100644
--- a/design.md
+++ b/design.md
@@ -1,12 +1,18 @@
-# high-level goals
+# vzxv design document
+
+## high-level goals
 * maximize emergent gameplay
 * maximize interaction between blocks, items, and mechanics
 * utilize height and depth of worlds
 * improve mining
 * limit the player's options at first and naturally introduce them to more mechanics over time
 
-# ideas
+## ideas
 * gravity lessens according to altitude
 * atmosphere thins according to altitude, affecting water, fire, and breathing
 * weight-based inventory limitations
 * sky islands, meteors with iron
+
+### underground biomes
+terrain becomes very foreign at extreme depths. the player will encounter underground biomes.
+* fractal world: fractal terrain generation with blocks with bizarre properties