Some people surely have a very narrow view of what is emergent gameplay. Heck, some people in this thread defended that emergent gameplay can only happen in multiplayer, and more specifically PvP, when there have been computer games since, at least, the 80s that were single-player affairs and actively promoted emergent gameplay. The original Elite was one such bastion.
(And, BTW, emergent gameplay is not universally good nor enjoyable. Devs nowadays often attempt to extirpate from their games all forms of griefing-heavy emergent gameplay because it can decimate the player base and ultimately kill the game.)
Oh I agree, I was being facetious - I happened to be in Skype with Mouse at the time I posed that so he knew not to take me seriously.
A prime example of emergent game play is the G.I.M.P.P. challenge brought about by the Hutton Truckers.
Nineteen stops to drop off a single rare Hutton Mug at each location from Hutton Orbital (which is why Mouse and I were in Skype, we are both taking part).
One stop is 16,000Ly from Sol and another is Sag A* - where as part of the challenge is to leave a single Mug floating in space.
You can do this challenge in any mode, you just need screenshots of yourself doing the drops - something we do not need multiplay or open mode. So anyone who says you "need" multi or open for "emergent game play" is talking nonsense. This is the 2nd thing the Hutton Truckers have done that can be completed in Solo Mode. I won a real Hutton Mug in their first challenge and just put 2 screenshots in for the next one.
As type this, I've completed my G.I.M.P.P. challenge (video on my YT channel - Jockey79) and am leaving Hutton Orbital right now with spare mugs for anyone who has problems getting out to Greae Nebula or Sagittarius A* with theirs, as some folks have had cargo hatch problems. So to save them turning back I'm taking out spare mugs so they can complete their challenge - cannot really get more emergent in my opinion

(and it does not involve shooting either

)