Effectively, NSR games are games in the OSR spirit (generally, but not necessarily, rules light with a focus on procedural systems that generate experience rather than prescribed plot [though this isn’t always the case with either “school”]) that are not concerned with being immediately compatible with OSR adventures.

Systems like Cairn, Mothership, and Electric Bastionland are all good examples of the NSR.

I’m lucky enough to be running/playing in a few games at the moment - including my first in-person table in literally years.

• We just did session 0.5 for a Whitehack game that will start in 2~3 weeks after some vacations wrap up. I’m very excited for that one - in person, just met everyone, the group is vibing crazy hard, and we used a really rad mini-game to create the world (The Ground Itself).
• I play in a Dungeon World game that’s going OK. Feels a little like it’s trying to find its feet atm.
• I run a Cairn game set in Dolmenwood that, after a PC decided to just straight up eat some fairy memory crystals, has turned into a Troika! fever dream game running The Forest Primordia. Might be my favorite game I’ve ever run as the players are just all excellent.

It’s worth it. It’s a very cool system/book with a bevy of super rad tables!

It’s probably the most I’ve had going on at any one time. They’re all very brief though - 2~2.5 hours at most - which, oddly, has turned out to be pretty great for those games where everyone’s focused and ready to get stuff done.