I played D&D, AD&D, Warhammer and Dragon Warriors with friend from the age of 10-17. I played in a game based on the system of Phoenix 2000 (a very detail oriented modern combat simulation system) and always loved the entire framework of RPGs. Now I'm 47 and I've rediscovered my fascination in the immersive aspects of world creation and RPGs generally.
This is legitimately the best way to travel to other worlds. You just have to create them first.
Current games
1. A Sleuth of Bears (an Runequest game set in the Rathorela forest during the Heroes war).