I've run nine different RPG systems in the year and change (and read twice that many games). A couple of these were one-shots, but most were adventures or campaigns. The games I ran were: D&D 5e (2014) - ended a multi-year Planescape campaign Mechwarrior: Destiny - 5 session mini-campaign Warhammer 40,000: Wrath & Glory - 7 session mini-campaign Shadowdark - one-shot Call of Cthulhu - one-shot Mothership - 5 session mini-campaign Old School Essentials - 8 session campaign, converted to... Worlds Without Number - 4 sessions in, still ongoing Delta Green - 9 sessions comprising Act 1 of Impossible Landscapes, with Act 2 forthcoming next year Here are nine takeaways I've learned about myself from trying out many different games: The narrative promise is what hooks me. The reality is always different. Every game promises "this is what kind of game this is - this is the fantasy you get to have in this game." Imagining that experience is what gets me excited about e...