Mind Blown: D&D a Draft of 5e Existed in 1981

In cased you miss this, Mike Mearls released his house rules he used with the basic set in 1981. They have a shocking resemblance to the rules in 5th Edition. I wonder what is being crafted in basements today... 

Player's Option: Low Ability Scores for 5th Edition

Zombie Minions (5e Stats)