Crater Song is a short, single-player co-op adventure puzzle game for the 8-bit NES based within the sci-fi fantasy world of Orebody. And it's FREE!
It's a brand new NES game (yep, 8-bit ROM for the NES) that's inspired by Brothers: A Tale of Two Sons.
That means it challenges players to control two characters simultaneously. On actual NES hardware, this means holding two NES controllers sideways, like Wii-motes, and using the d-pads and Select buttons to play the game. If you have an Everdrive or similar cart, you can toss the ROM on there and play on actual NES or NES-clone hardware. The control scheme, like in Brothers, is actually quite intuitive.
Crater Song can also be played via emulation. So, unless you have two USB NES controllers around, I might recommend using WASD and the Arrow Keys to control each character. You can map Select and Start to whatever buttons are within easy reach.
Here's a link to the game: https://johnvanderhoef.itch.io/crater-song
You can also check out the trailer below: