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Nintendo DS Wi-Fi Games: How to Play Online Today (Wiimmfi Guide)

Official Nintendo Wi-Fi Connection (WFC) service shut down on May 20, 2014. Matchmaking, leaderboards, and DLC downloads no longer work on original servers. However, a massive community effort has revived online play for dozens of titles via Wiimmfi.

The Revival: Wiimmfi

Wiimmfi is a custom server replacement supporting Mario Kart DS, Animal Crossing: Wild World, Metroid Prime Hunters, Tetris DS, Pokémon Gen 4 & 5, and many more. It requires patching your game to redirect DNS requests.

Supported Heavy Hitters

Genre	Key Wiimmfi-Supported Titles
Racing	Mario Kart DS (Huge active community), Need for Speed Nitro
FPS/TPS	Metroid Prime Hunters, Call of Duty: MW Mobilized, Brothers in Arms DS
RPG	Pokémon D/P/Pt/HGSS/B/W/B2W2 (GTS, Battle, Trade), Dragon Quest IX
Action	Castlevania: Portrait of Ruin / Order of Ecclesia (Co-op Boss), Contra 4
Puzzle	Tetris DS, Clubhouse Games
Sim	Animal Crossing: Wild World (Visiting Towns)

How to Connect (Modern Hardware)

Hardware: Nintendo DS/DSi/3DS with Custom Firmware (CFW).
3DS: Boot9strap + Luma3DS.
DSi: Unlaunch + HiyaCFW / TWiLight Menu++.
Original DS/DS Lite: Flashcart (R4i Gold 3DS+, Ace3DS X) running TWiLight Menu++.
DNS Patch: Set Primary DNS to 95.217.77.151 (Wiimmfi) in your system's Wi-Fi settings. Better: Use TWiLight Menu++ or nds-constraint which auto-patches the game binary in RAM—no manual DNS entry needed.
Play: Launch the game → Nintendo WFC Settings → Connect. You'll see the Wiimmfi welcome message.

Local Wireless Still Works Natively

Ad-hoc multiplayer (DS↔DS, DSi↔DS, 3DS↔DS) for Multi-Card Play or Download Play works perfectly without internet, CFW, or DNS changes. It uses the hardware's native 802.11 local wireless protocol.

Nintendo DS