| dfs | Dragona Online Game Data |
| dhm | Shadowgrounds Mission Data |
| dhs | Shadowgrounds: Survivor Script |
| dhu | Shadowgrounds: Survivor Unit |
| die | Diablo Item Data |
| dir | Worms Armageddon Game Archive |
| diva | Project DIVA Song |
| djs | NASCAR Thunder 2004 Game Music Data |
| dkd | Submarine Titans Game Map |
| dkx | Submarine Titans Game Data |
| dlg | Bioware Aurora Dialog Data |
| dlls | UFO: Alien Invasion Plugin Dat |
| dm3 | Quake 3 Arena Demo |
| dmap | Conquer Online 2 Game Map |
| dmbot | AQW DMBot Data |
| dmo | Duke Nukem 3D Demo File |
| dmod | Dink Smallwood Add-on |
| dm_1 | Call of Duty Demo Data |
| dm_57 | Return to Castle Wolfenstein Game Demo |
| dm_68 | Quake 3 Arena Demo |
| dm_82 | Wolfenstein: Enemy Territory Demo Movie |
| dm_83 | Wolfenstein: Enemy Territory Demo Movie |
| dm_84 | Wolfenstein: Enemy Territory Demo Movie |
| dn1 | Duke Nukem 1 Game Data |
| dn2 | Duke Nukem II Game Data |
| dn3 | Duke Nukem 3 Game Data |
| dnf | Duke Nukem Forever Data File |
| dnh | Danmakufu Script |
| dni | realMyst 3D Data File |
| dnm | YS Flight Dynamic 3D Model |
| dnp | Eudemons Online Data |
| dnr | Beneath a Steel Sky Game Data |
| do2 | Resident Evil 2 Game Data |
| dog | Dogz Dog Data |
| dpc | Twisted Metal 2 Texture |
