My main RPG group borders on improv theatre and is very hard to please in terms of genre. Two want fantasy and one wants Sci-fi/Cyberpunk, but none of them want overly crunchy rules. Enter Shadowrun: Anarchy.

All the creamy of the 2070s with not much of the crunch of SR5, yet close enough that I can use my SR5 collection with Anarchy with minor tweaks. Concise, tons of pre-gens and a very simplified run set-up and you have a game that manages the essentially impossible task of "rules-light Shadowrun."