Why coop in Rain World does'nt work on different devices ?

[あなたが負けた]

Why doesn't co-op mode on different devices in rain world? What needs to be done to make the co-op work? Maybe some kind of mod?

[Nen☆niN]

Different devices? If you're only talking about different computers, then you can play together as long as you have steam, using steam remote play. Crossplay between consoles is no-no. The game isn't even intended to be able to play online, only local, but steam remote play takes care of that limitation.

[あなたが負けた]

Mi friend have very bad wifi and ny wifi is the same we can't play comfortable with remote play so is there another way to play together ?

[Nen☆niN]

If you live close to eachother one of you can just go to the others home and play local multiplayer on the same PC

[あなたが負けた]

we live in another countries

[Nen☆niN]

Maybe look into getting ethernet cables, both of you, if that's an opportunity. That'd skip the worst part of bad internet, the wireless wifi. Other than that, you're ♥♥♥♥ out of luck.