It's probably come up before, but I would find it interesting if the Game Info separated out the ruleset and the setting, so I could search for them separately

Eg, DnD in Middle Earth, Rolemaster in Skyrim, GURPS in Home-brewed, Home-brewed in Rifts Megaverse, etc

Setting is something for the GM to list, either in the game title or by editing the system, both of which can be searched.

There are just too many settings for us to set up and populate an official list.

Gods, I wasn't thinking of an official list just a distinct free-form field!

Ah, okay.

Both of the existing fields can, however, include setting information.

Is suggest you use the system field, select one of the entries in the list (so that people can search for the system using a definitive list) and then add whatever you want to the end.