Hey there! I'm actually looking for an artist to collaborate with me on Extraneus, a retro first person shooter with pixel art graphics. You can see the post I made about it here; https://itch.io/t/65584/art-ne...
I'm thinking of changing the theme from sci-fi to steampunk, actually. I think it would make it stand out more. I can't pay you upfront, unfortunately, but I can offer you a share of the profits. I already have someone who would take care of marketing. We would first make a kickstarter campaign to fund the project, and sell it on Steam and itch.io when it's finished.
Let me know if you're interested. Thanks! :)