| Code: | Result: |
| -altdeath | Activates DeathMatch v2.0 (v1.4 and above) |
| -timedemo <filename without .LMP> | Calculates number of times screen is redrawn during a demo |
| -devparm | Developers mode |
| -nomusic | Disable background music |
| -nosound | Disable sound |
| -nosfx | Disable sound effects |
| -nojoy | Disable the joystick |
| -nomouse | Disable the mouse |
| -debugfile <name> | Dump debug info to debug<name>.txt |
| -phase | Enable phase shifting on PAS16 |
| -opl3 | Enable stereo music through OPL-3 on PAS16 |
| -avg | End the game after twenty minutes |
| -respawn | Enemies respawn in non-Nightmare* |
| -turbo <1-255> | Increases the speed of the marine |
| -noblit | Internal bugging switch |
| -nodraw | Internal bugging switch |
| -comdev | Internal development, texture mapping |
| -regdev | Internal development, texture mapping |
| -shdev | Internal development, texture mapping |
| -wart <1-3> <1-9> | Load PWAD named ExMy.wad |
| -fast | Nightmare mode without respawn* |
| -nomonsters | No monsters* |
| -playdemo <filename without .LMP> | Play back recorded demo* |
| -config <file name> | Read an alternate configuration file* |
| @<filename> | Read in a command line parameter file |
| -recordfrom <0-5> <filename> | Record a demo from saved game* |
| -record <filename without .LMP> | Record demo until you finish or die* |
| -maxdemo | Set maximum size of LMP recording* |
| -right | Set up a network terminal for "right view"* |
| -left | Set up a network terminal for the "left view"* |
| -episode <1-3> | Start at indicated episode* |
| -skill <1-5> | Start at indicated skill level* |
| -deathmatch | Start NetDoom in Deathmatch mode* |
| -loadgame <0-5> | Starts from indicated saved game* |
| -nodes <1-4> | Starts NetDoom with indicated player amount* |
| -file <.wad filename> | Use external PWAD file* |
| -cdrom | Uses C:\DOOMDATA directory for data |
| -GUS1 | Uses new GUS instrument mapping (default) |
| -GUS | Uses original GUS instrument mapping |
| -warp <1-3> <1-9> | Warp to episode (1-3) level (1-9) |
