Thanks for the recommendation. I adored Monument Valley and would love more of it. It looks as if Mekorama doesn't quite capture the overwhelming charm that boosts MV above what is, at core, a very easy puzzle game. But it does look like it would be fun, and I'll give it a try.
Polytopia and Bad North are very cute, quickly comprehensible, and playable-in-small-slices-of-time 4X-ish games.
Yiotro is a developer who makes visually simple but engaging strategy games on mobile [1] [2]. Antiyoy is a conquer-the-world game, in Vodobanka you control a SWAT team, etc.
[1] https://play.google.com/store/apps/developer?id=Yiotro&hl=en...
[2] https://apps.apple.com/us/developer/ivan-yakovliev/id1415296...