Given our history with Mac games, we still have a bit of a soft spot for it. While the free Mac game selection isn't as vast as it is on iOS, there are still some gems to be found.
This article from Macworld UK is a pretty good place to start if you are looking for some free Mac games, it is from October 2019 but it is mostly still valid.
My personal favourite on that list - Super Stickman Golf 3
It isn't the most sophisticated game out there, with its simple graphics and soundtrack. In terms of a game that is easy to learn yet hard to master, this is up there. Super Stickman Golf also keeps things interesting with multiple power-ups, 20 courses and turn-based multiplayer modes.
Free (with in-app purchases) - App Store Link
Have you tried all the games on the list? What are your favourites?