Keys and Cowls is a very difficult retro puzzle platformer. Sneak your way through the Temple of Iris, past the keepers of the temple who can kill you with a glance, and discover the treasures and secrets within.
I started Keys and Cowls as an entry to GBJam5, with the intention of making a very basic stealth platformer. After the jam, I sort of just continued adding to it.
The game as it stands currently has over 20 levels, along with dozens of secrets, and rewards for players who push the limits of completionism.