Ideas for non-abstract games that I might enjoy?

[Spiegel428]

I think "rules change" in Red7 is a bit of a misnomer. It's really just one condition that changes (compared to the Fluxx family of games, for example). It's a neat little puzzle, but it also can feel like playing solitaire sometimes.

I see Carcassonne has been mentioned, some other tile placement games are Kingdomino, Cacao and Sapiens.

For 2p in particular, I'd suggest Targi.

[GeraldineMerida]

Chakra hasn't been mentioned yet and absolutely fits the requirement of 'quick to learn; hard to master'.

[frogstar_A]

Butterfly is a great game that's simple to learn and play but with lots of strategic depth.

I don't know if you'd call it abstract or not - you're a Butterfly collector collecting tiles for points