akr71
Hero
Bringing back a great number of 2e player who had stopped playing years ago (20 yr hiatus for me).
The simplification of the rules and return to greater DM fiat also introduced D&D to a lot of new people who were more interested in shared role playing than just min/max tactics.
& 1e players. I stopped playing while my group was transitioning to 2e & the Forgotten Realms (almost 30 years for me).
Simplicity and easy to learn game system. My family and a hand-full of friends all picked it up fairly quickly and none have ever played any table top RPG before. My daughter even had a D&D sleep-over birthday party and taught her friends to play (& they all loved it)