Meantime, here's some of the more interesting console commands:
RECORD Start recording demo STOP Stop recording demo TIMEDEMO Displays stats about specified demo PLAYDEMO Plays back specified demo STOPDEMO Stop playing back demoN.B. "TIMEDEMO" may not work properly prior to version 1.06 of QUAKE.
CROSSHAIR 1 Display crosshairs for aiming.
FOV n Sets field of view. Default 90, usable range 10-120.
Low values give you a "binocular-style" view similar to
pressing F11, while large values give a "fisheye lens" view,
and your current weapon disappears from view.
RESTART I'll give you three guesses...
SENSITIVITY n Sets mouse sensitivity. Default is 3, although you might
want to experiment with higher values (e.g. 12 or 20).
SHOWTURTLE 1 Displays a "turtle" icon if frame rate drops below 10fps.
SKILL n Set skill level (0=easy, 3=nightmare)
TIMEREFRESH Find out how fast your system is - does a 360 rotate, then
displays the time and frame rate (in FPS).
VID_DESCRIBEMODES Lists all available video modes & resolutions.
VID_MODE n Sets the display to the specified mode.
See techinfo.txt for a full description.
MAP name Starting episode (e.g. MAP E1M7 or MAP START).
Use it on the server.
CHANGELEVEL Like MAP (q.v.) but can be used mid-game.
COLOR shirt pants Set colour of uniform. In team play, pants colour
controls which team you are on.
CONNECT name Connect to a server
COOP <0/1> Set "cooperative" mode. Default 0 (deathmatch).
DEATHMATCH <0/1> Set type of deathmatch (deathmatch/altdeath)
DISCONNECT Duh....
FRAGLIMIT n Set number of frags at which server quits.
HOSTNAME name Set name of server
KILLSERVER Closes down server
LISTEN n If 0, no more clients can join the game.
MAXPLAYERS n Maximum number of players allowed in game
NAME name Player name
NOEXIT 1 If a player tries to exit a level, he gets telefragged.
PAUSABLE <0/1> If 0, players cannot pause the game.
PING Measures network delay for multiplayer games. This will
show the delay for all players, not just yourself, so you'll
be able to see who has the fastest connection.
SLIST List all available servers
STATUS Display hostname, map, players and frag scores.
SYS_TICRATE n Rate at which server sends out updates. Default is 0.05
(i.e. 20 updates/sec) but for a modem/serial game you are
advised to alter this to 0.1 (i.e. 10 updates/sec).
TEAMPLAY <0/1> Set team mode. Default 0 (deathmatch).
TIMELIMIT n Set amount of time game will last before quitting.
Also, check out the SV_ commands in the main list, some of which (for
example SV_FRICTION and SV_GRAVITY) can make for an interesting time if used
mid-game <evil cackle>.