Québec Indies bundle is one of the rare ones that only has one game that I both don't have and can run on my Mac without emulation. And at the $10 level Castle Story would cost more than just straight out buying it (Steam is having their holiday sale which is why most of the games are sale price).

$1 Level

Leap of Fate (Windows, $5 on sale) - cyberpunk rogue-like set in a NYC where magic is real
Aeolis Tournament (macOS 32-bit, $15) - 8-player party games
Toto Temple Deluxe (Windows, $10) - local multiplayer king-of-the-hill, steal the McGuffin and keep it for as long as possible

$7 Level

Light Fall (macOS 32-bit, $4 on sale) - 2d platformer
Jotun: Valhalla Edition (owned, $3 on sale) - Norse mythology-based adventure game
Crew 167: The Grand Block Odyssey (Windows, $4 on sale) - man alone on a spaceship starts hallucinating
Epic Manager - Create Your Own Adventuring Agency! (macOS 32-bit, $6 on sale) - sports management + JRPG
Knight Squad (macOS 32-bit, $3 on sale) - 8-player arena games

$10 Level

Castle Story ($7 on sale) - RTS castle building game
Tales from Candlekeep: Tomb of Annihilation (macOS 32-bit, $4 on sale) - cooperative board game
Mages of Mystralia (Windows, $5 on sale) - adventure game
Speed Brawl (Windows, $8 on sale) - 2d brawler