Start game, hit enter and type the following cheats:

001) AddFD shows white tiles all over non-object areas and black tiles over object area
002) AdvExplorer Built in MYTH option .. Computer hangs
003) ae shows a nice tree with all the properties of the current level (it's actually an editor of some kind)
004) AppendFile nothing visible
005) BlurTerrain nothing visible
006) BuildRLEMMap yet another game-hanging option
007) BuildSPF nothing visible
008) ChangeFormation nothing visible
009) ChMap nothing visible
010) ClearDecors nothing visible
011) clock nothing visible
012) cls nothing visible
013) Conv nothing visible
014) CurPlayer nothing visible
015) cvar1 nothing visible
016) cvar1 nothing visible
017) cvar2 nothing visible
018) cvar2 nothing visible
019) DebugSelected debugs the selected unit
020) DeepWater running DeepWater(1,1,1) says "BuildDark() cannot be executed - the source has been commented, Ask Mordred!"
021) DelDecor nothing visible
022) Desync writes a desync_test.txt
023) DisablePtDraw nothing visible
024) Dlg nothing visible
025) DumpFuncToXML dumps some XML function descriptions into dump_try.XML
026) DumpObj shows a nice tree of the selected unit's abilities, don't use when nothing is selected
027) DumpStats nothing visible
028) EdgeOfForever nothing visible
029) EnablePtDraw nothing visible
030) ESG tells about the enemy squads of player2 attacking player1 or smth - ESG(1,2)
031) ExploreAll nothing visible
032) Explorer MYTH (R) function
033) ExportObjs ExportObjs('filename') and it exports all the objects into filename
034) ExportTerrain same as above, exports terrain
035) F5 nothing visible
036) FlatTerrain flats terrain
037) GAIKAFD shows green tiles all over the non-object space and black tiles under objects
038) GenTransTables nothing visible
039) GetItem GetItem('x') probably gives you item x if you know it's itemid
040) gmp gives coordinates of the point under the mouse
041) GS GS(1) -> hang
042) IngameDebugSelected nothing visible
043) InsDecor nothing visible
044) Invalidate nothing visible
045) Load Load
046) Load loads name
047) LSA hangs
048) MakePassable nothing visible
049) MousePos shows mouse position
050) Pause pauses/unpauses
051) PerlinTest nothing visible
052) PFPersist nothing visible
053) pr prints a bool, int or string
054) pr same as above
055) pr pr('You are fat') will print 'You are fat'