Citra
An open-source emulator for the Nintendo 3DS with online multiplayer functionality.
guide not written yet
HunsterVerse
A community-driven online service for playing Monster Hunter games.
guide not written yet
also on PSP · PS2
Madness Gaming Network
A network for connecting older consoles to play online games.
guide not written yet
also on PSP · NDS
Mandarine
Windows/Linux/Android Nintendo 3DS emulator that supports multiplayer
guide not written yet
Official Servers
Official servers maintained by developers or platform providers for multiplayer gaming.
guide not written yet
also on NSW · PSP · PS3 · NDS · STEAM · PSVITA · PC+
Parsec
A streaming platform that allows online multiplayer gaming by sharing a computer's screen.
guide not written yet
also on PSX · NSW · SNES · PS3 · Wii · GENESIS · PS2 · GBC · PS1 · ARCADE · NES · GAMECUBE · XBOX · NDS · SATURN · N64 · STEAM · GBA · Dreamcast · PC+
Pretendo
Pretendo is an open-source project that aims to recreate Nintendo Network for the 3DS and Wii U
guide not written yet
Wiimmfi
An online gaming service that replaces Nintendo's discontinued Wi-Fi Connection service.
guide not written yet
also on Wii · NDS
XLink Kai
A global gaming network that uses tunneling to enable online play for supported consoles.
guide not written yet
also on NSW · PSP · PS3 · Wii · PS2 · GAMECUBE · XBOX · NDS · PSVITA · Xbox 360
ZeroTier
A VPN service that enables multiplayer games over a virtual LAN.
guide not written yet
also on NSW · PSP · PS3 · Wii · PS2 · GAMECUBE · XBOX · NDS
Play it with people
Find people to play Nintendo 3DS with
Be the first here to play 3DS online. Open a lobby and the site pings everyone who plays it.
Nothing open right now. Open a lobby and the members who play it hear about it.