Different ideas, same workshop.
Gold Rush! Down the Line
A turn-based mining puzzle — one mine under every Singapore MRT station, and gold only counts once you get it home.
Change Up!
A cashier arcade game — hand back the fewest-piece change before the register clock beats you.
Sylvania
A zen sliding-block puzzle — one move a turn, then the forest settles.
Three works
Stringify!
A string-art generator — any photo, redrawn as one continuous thread.