What is netplay?
It's a mechanism that allows multiplayer over a network. It's not link cable emulation though. It's same system multiplayer.
Does RetroArch require port-forwarding to work?
Yes, the host needs to forward the ports properly. There is a fallback mechanism that can be employed by those who can't forward the ports, please read the Setup Guide below.
Does it support more than two players?
Does it support more than one player on one computer?
What do you need for RetroArch netplay to work?
Same RetroArch version, same core version, and the same exact content.
Content not found, try loading content manually
Either load content manually, have the content in your recent history list, or scan your content to a playlist.
Does RetroArch support cross-platform netplay?
Yes, but your mileage may vary, particularly when endianness differs.
Which cores work for netplay?
On a technical level, every core that supports save states should work but the performance requirements may be too high for it to work in any practical level.
Does PSX / N64 / Dreamcast / GameCube / Wii / 3DS netplay work?
No, the performance requirements make the current model unsuitable for those.
Can I play GB / GBC / GBA / PSP / 3DS games with multiple people via RetroArch Netplay?
No, RetroArch's netplay is not link-cable emulation, GB, GBA, PSP netplay are currently not possible with our implementation. One notable exception is same game GB/GBC Netplay via the TGB-Dual and Sameboy cores.
Can I trade Pokémon via RetroArch Netplay?