Cheat Codes

In Total Annihilation, press Enter for the message box, and then type in the cheat codes. Except for RADAR,LIGHT,SING, and other useless ones, they only work in multiplayer (if allowed) and in skirmish games. Here they are:

+AIMFROMPRIMARY -
+AIMFROMSECONDARY -
+AIMFROMTERTIARY -
+ANTIALIAS -
+ASSERT -
+ASSIGN -
+ATM - Gives you 1000 metal and energy.
+BECARRIED -
+BIGBROTHER -
+BURNALL -
+BURNONE -
+CDPLAY - Same as +CDSTART. (bit quicker)
+CDSTART - Starts CD Music.
+CDSTOP - Stops CD Music.
+CLOCK - Shows game clock.
+CONTOUR # - Displays a 3D contour, # = 1-15.
+CONTROL # - Lets you control a different skirmish AI, # = 0-3.
+DEBUGBREAK -
+DPRINT -
+DITHER - Dithering instead of line of sight.
+DOUBLESHOT - All weapons do twice the damage.
+DR -
+DROP -
+EDGE -
+FEATURE -
+FILM -
+FILMSPEED -
+FSHADOW -
+GIVE -
+HALFSHOT - All weapons do half the damage.
+IFACE -
+INCLUDE -
+ILOSE - Causes you to lose.
+IWIN - Causes you to win.
+KILL - Kills every unit. (including yours)
+LIGHT 1000 - Darker structures. No number makes them black.
+LINE%D -
+LOS - Same as +NOWISEE. (quicker)
+LOSTYPE -
+MEM -
+MEMDUMP -
+MOVE -
+MUSICMODE -
+NETSTATS -
+NOENERGY - Drops your energy to 0.
+NOMETAL - Drops your metal to 0.
+NOSHAKE - Stops explosion screen shakes.
+NOTOKTOBUILD -
+NOWISEE - Full map and disables line of sight.
+NUMLINES -
+NUMTABLES -
+OKTOBUILD -
+PROFILE -
+QUERYNANOPIECE -
+QUERYPRIMARY -
+QUERYSECONDARY -
+QUERYTERTIARY -
+RADAR - 100% radar coverage.
+RCACHE -
+RELOAD -
+SCROLLSPEED -
+SCREENCHAT -
+SEALEVEL -
+SEARCH -
+SELBOXES -
+SELECTABLE -
+SHADOW - Toggles object shadowing.
+SHOT -
+SING - This command makes units "sing" when given orders.
+SOUND3D - Toggles 3D sound
+SWEETSPOT -
+SWITCHALT - Allows you to switch between squads with # keys.
+TABLE%D -
+TABLEINFO -
+TREEDEATH -
+TSHADOW -
+VIEW # - Lets you see the metal + energy a player has, # = 0-3. +ZBUFFER -

Below is the first Campaign cheat code:
Click on Total Annihilation's Single Player icon.
When the Single Player Game page appears type
DRDEATH (it is not case sensitive). This will
cause a Cavedog Entertainment bone to appear
between the Load Game and Previous Menu icons on
the screen. Clicking on the bone will take players
to a special Play Any Game screen where they can
play any Total Annihilation mission, even if
they have not earned their way to that level yet.

Editing:

Use the Write_HPI file to extract the totala1.hpi files. This tells you the files use.But I don't know how to
get it to work.

Edit TDF files to edit the weapons, smudge, etc.
Edit the FBI files to edit units.
Edit the GUI files to edit the cursor, buttons, etc.
Edit the BOS files to edit ingame explosions.
Open the PCX (pictures) files to edit the icon pics.
Open the WAV (sound) files to edit the sounds.

3DO - unknown
COB - unknown
FNT - unknown
GAF - unknown

To edit the new unit = Flakker, extract the file and change file that was extracted to the name 'AFlakker.ufo' to 'AFlakker.hpi'. Then use write_HPI on it. Then after the files are extracted change the name back to 'AFlakker.ufo'. I don't know how to get my edited files to work.

Build Cheat

Building things that normal could be build by Advanced Construction units and Construction units.

Select the unit (Construction or Advanced Construction unit) and press Enter. While in the message-mode you just select the commander and press ENTER again. Now you will see that you can build things like Big Bertha's and Guardians and even a Warlord (I think not tested, but you'll have to do the same trick as above with an advanced shipyard) with your Commander.