Genre is definitely modern pulp action. Every one has seen Indiana Jones, supernatural, Die Hard, or James Bond. So it easy to give them a point of reference without special knowledge, guns go bang, bombs go boom, defeat the villain’s evil plan, and play the suave hero.

My first thought was an Apocalypse World Powered game like Monster of the week, but I feel they are a masters classes in Roleplaying. Second thought was Savage Worlds but it can be a bit gamey. Even though my 6year old got the basic idea of SW quickly.

With adults, I will introduce them with either Risus, PDQ, or WuShu, and when they want more system move to Fate Core or a game of their choosing. These games all have free PDFs of the rules, and they use D6s. Creating a character is quick; naming three cliche statements about their character and giving them a rating. The rules are uniform for all task resolutions including combat. And simple to explain and walk through. These games are low prep and I could improv an hour long taster adventure, containing a skill challenge and a fight.