| n2km | NBA 2K13 Model |
| n2pk | The Incredible Adventures of Van Helsing Game Archive |
| n3pmesh | Knight Online 3D Mesh |
| n3v | Trainz Game Data |
| nav | Quake 3 Bot Navigation Data |
| naz | Total Overdose Game Data |
| nbgr | Nintendo DS Basic Graphics Resource Data |
| nbl | Phantasy Star Universe game data |
| ndm | Enemy Territory: Quake Wars Demo File |
| nefs | DiRT4 Game Data |
| neosave | Neopets Puzzle Adventure Save File |
| nfs11save | Need for Speed: Hot Pursuit Saved Game |
| ngage | N-Gage Game |
| ngb | NonoPocket Nonogram Puzzle Data |
| ngn | Fly! Data File |
| nh | NetHack Game Configuration File |
| nif | NetImmerse Data File |
| nip | D2NT NIP File |
| nis | Homeworld Non-Interactive Sequence Data |
| nl2script | NoLimits 2 Script |
| nlelem | NoLimits Track Element |
| nlpack | NoLimits Roller Coaster Track Package |
| nlpx | NoLimits RCS Package |
| nltrack | NoLimits Roller Coaster Track Data |
| nml | NSMB Editor Exported Level |
| nnt | Close Combat 3 Game Data |
| nob | Vampire: The Masquerade Archive |
| node | For Honor EasyAntiCheat Data |
| non | Star Wars: Tie Fighter Mouse Options Data |
| npa | Steins: Gate Archive |
| npj | Delta Force Game Mission Data |
| nsbca | Nintendo DS Model Animation |
| nsbtx | Nintendo DS Model Texture |
| nsbva | Nintendo DS Visibility Animation |
| nsz | Rumble Fighter Data |