I'm trying to figure out if I can transfer Celeste from Windows to Steam. I managed to add it to my Steam account but when I press play nothing happens. Tbh nothing happens on my computer when I press play too (Windows 10). Any ideas?

we would need more information on what "nothing" means when you try and play it, does the executable not start? does it give an error? is there an error log? do you have the xna 4.0 redistributable?