The road to madness:
1. I'll run a game based on old Endless Quest books!
2. I'll set it in Mystara
3. I need to flesh out the town of Threshold
4. I need to create some relevant backgrounds
5. I need to create Basic D&D-style subclasses
6. I need to create subraces
7. I need….

— Mike Mearls (@mikemearls) March 30, 2018

Day 3 of #TTRPGMaker – I got started with RPG design back in 1981. My copy of Keep on the Borderlands was missing its map. I drew my own on strips of excess wallpaper from one of my dad's home improvement projects. I also designed a few new levels of Frogger while I was at it.

— Mike Mearls (@mikemearls) April 3, 2018