If you liked Blackwell Legacy, check the other Blackwell games.
They are currently 80% off at GOG, and I'm mainly linking to GOG webpages because they are currently having such a good sale. After the sale is over you may want to check other sites like Big Fish or wherever you like to buy from.
https://www.gog.com/game/blackwell_bundleThe "Blackwell Bundle" includes the first four games in the series
Blackwell Legacy,
Blackwell Unbound,
Blackwell Convergence, and
Blackwell Deception.
Blackwell Epiphany is the last in the series and is sold separately from the "Bundle"
https://www.gog.com/game/blackwell_epiphany_theAnd you might also check out other games from Wadjet Eye including
Resonance
https://www.gog.com/game/resonanceGemini Rue
https://www.gog.com/game/gemini_rue(note -- Gemini Rue has some action in it, particularly the "stompers" toward the end)
Primordia (this one is a favorite of mine among Wadjet Eye Games)
https://www.gog.com/game/primordiaTechnobabylon
https://www.gog.com/game/technobabylonalso available as a "Deluxe"
https://www.gog.com/game/technobabylon_deluxe_editionShardlight
https://www.gog.com/game/shardlightalso available as a "Special Edition"
https://www.gog.com/game/shardlight_special_editionThe Shivah (a remake of one of his first games)
https://www.gog.com/game/the_shivah---------------------------
Most of the games from Amanita have Mac versions, including
Botanicula
https://www.gog.com/game/botaniculaMachinarium
https://www.gog.com/game/machinarium_collectors_editionSamarost series, which you can read about here
http://amanita-design.net/games.htmlhttps://www.gog.com/game/samorost2https://www.gog.com/game/samorost_3 -----------------------------
Perils of Man had a Mac version
http://fireflowergames.com/shop/perils-of-man/----------------------------------
Since you say you liked Night of the Rabbit, check
Whispered World
https://www.gog.com/game/the_whispered_world_special_editionBook of Unwritten Tales
https://www.gog.com/game/the_book_of_unwritten_talesBook of Unwritten Tales 2
https://www.gog.com/game/the_book_of_unwritten_tales_2_almanac_editionDark Eye: Memoria one of my favorite relatively recent games
https://www.gog.com/game/memoriaI don't think the previous game, Dark Eye: Chains of Satinav was made for Mac, but it's not necessary to have played it to enjoy Memoria.
There are 4 Deponia games now, so if you missed one you could play that. This is the latest one:
https://www.gog.com/game/deponia_doomsday-----------------
Many old "classics" like The Dig have been configured to automatically use either ScummVM or DOSBox so they run without configuration.
https://www.gog.com/game/the_digHowever they may look or sound better with a few tweaks.
---------------------