I enjoy playing games with the cities and castles features. Is there any way to list only games with cities or only games with castles?

My one cities game I could find: imp cities 3v3v3v1

My one castles game I could find: A Battle of Castles (LD)

I'm glad you are enjoying WZ!

The setting that allows you to build cities in games is called Commerce, so that might help you with searching.

As far as I can see, there is no way to filter anything on commerce only, so you will have to go by game title or the commerce icon.

By the way, where do you want to list the commerce games? On the open game page? Past games page?

Well - a filter would be ideal, that works with the search. Just for commerce would help but ideally I would like to be able to see only "Cities" or only "Castles". The game database know which games have these features turned on where you buy a city or get extra armies to put into castles.

If you want to search for a keyword on the open games tab, you can use Ctrl F in your browser. On your phone you will have to manually read all the titles.

If you are talking about past games: you can search through those when you change the favorite games on your profile.
(Profile > Profile Edit > Change Favorite Games)