Space Shooter - The classic retro game recreated using Pygame and python.
Battle of the Brands - Compare the online awareness of 2 brands in a battle
AstroMenace - Cross-platform and open-source 3D space shooter with spaceship upgrades.
Retro App Store - How App Store would look like if it was launched in 80s
Knytt Stories - In Knytt Stories, each level is its own little adventure.
MacMenuBar - A curated directory of 200+ Mac menu bar apps