This Friday (16th) will be Peter, EXP/PHI. Since he's one of the easiest leaders with which to do a One City Challenge I plan to edit the map to encourage Nobles to try an OCC. The scenario will be set with OCC off, so the default is a normal game.
"Edit the map" basically means the starting location will be better than the RNG would generate, that some critical resources will be in the first few rings, but there will still be a need and opportunity to trade for other resources. The defensive position will be good (since it's hard to build lots of troops). I'll try not to overdo it (a tendency I've shown in the past sometimes).
Also I'll select the opponents; a couple of moderate warmongers but no kill-crazies, plus some extra AIs to crowd their territory to compensate for the player having only one city.
It will still be eminently playable without OCC, since OCC is a specialized taste (thus there will still be a few reasonable sites for subsequent cities).
I plan to make a real effort to play this one through despite my recent heightened problems with RSI, since I've wanted to do it for a long time, and (selfishly) having the NC around to critique me would be a big help over going it alone, as would other people trying the same map.
I know about the separate OCC series; that actually appears to have been inspired by a thread I created months ago when first considering doing an OCC with Peter.
One very picky detail: given this is for newbies, how important is it that the city be within the right distance of the equator to allow the space elevator? I figured it might be important for an OCC to have the choice even though the Elevator is often not worth it in a normal game. With more energy I could probably calculate how many hammers it saves in constructing all the spaceship parts versus the cost to build it directly.