To enter cheat mode

Hold down Tab and press F11. A box will come up – then type in “BYRNE” and then press return to enter into cheat mode. The following cheats will only work if you’re in cheat mode.

General cheats:

Then press the following key combinations during the game. These cheats don’t work in multiplayer games!
Tab & F1 A little more mana
Tab & F2 Free Spells (does nothing – it would have effect in the old game, read the Old Readme page)
Tab & F3 All spells
Tab & F4 All buildings
Tab & F5 Max Mana

Unlimited spell range cheat:

Kill your shaman then use the O button, you will see an option called human shaman omnipresence (66 in Software mode, 70 in D3D) and activate it then when your shaman reincarnates she will be able to cast anywhere on the world!

To play demo levels:

Just activate the cheat then pres F11 it will go into demo mode, then just click when you want to play.

Rapid game:

Once the cheat mode is activated you can change the game speed to 33 instead of 5. WARNING! Don’t use it in multiplayer otherwise the game will desync.

Hide the UI:

Press F10 to hide or show the User Interface. Useful for taking screenshots.

The “O” button explained further:

Hold the “O” key and press the arrow keys to change some game values.
1 – Messages Off (Default: No)
2 – Auto Quick Save (Default: No)
3 – Sound (Default: Yes) [Turns game sounds / ambiations on or off]
4 – Music Type (Default: 1) [Changes the current music track]
5 – Sync Checking (Default: Yes)
6 – No Draw (Default: No) [Cause the graphics to split when enabled, use with caution]
7 – No Sprites Draw (Default: No) [Unknown Effect]
8 – Pause On Out Of Sync (Default: Yes) [Causes the game to pause itself if it happens to go out of sync]
9 – No Texture Mapping (Default: No) [Disables texture mapping on the terrain]
10 – No Poly Draw (Default: Yes) [Cause the game screen to split vertically, stopping the graphics]
11 – No Objects Draw (Default: No) [Cause the ingame objects such as huts to disappear from the screen]
12 – Plan View Hide Enemy People (Default: Yes) [Useful if turned to "No" allows you to see enemies on your minimap]
13 – Plan View Hide Enemy Buildings (Default: Yes) [Useful if turned to "No" allows you to see enemy buildings on your minimap]
14 – Scroll Momentum (Default: Yes)
15 – Scroll Momentum Amount (Default: 1)
16 – Texture Mapsize (Default: 32) [Changing this value crashes the game]
17 – Ambient Light (Default: No) [Changes lighting on objects]
18 – Point Lights (Default: Yes)
19 – Ambient Shadows (Default: No)
20 – Point Shadows (Default: No)
21 – Sky On (Default: Yes) [Switches the sky on or off]
22 – Hires Textures Off (Default: No)
23 – Use 32×32 Hires Texture (Default: Yes) [Changing this value crashes the game]
24 – Footsteps (Default: On) [Option to have footsteps on the ground or not]
25 – Animating Water (Default: On)
26 – No Formations (Default: No)
27 – Show Formation Points (Default: No)
28 – Frame Limit Min Ticks (Default: 5)
29 – Computer Player Off (Default: No) [This is very useful if you want to take it easy on a level, it completely turns the computer artificial intelligence off causing them not to attack you or defend themselves]
30 – People Panel (Default: No) [No effect]
31 – No Jan Navigation (Default: No)
32 – Full Map Sync Check (Default: Yes) [Checks whether the map is in sync with objects]
33 – Show Jnav Points (Default: No)
34 – Computer Jnav Work Path Lens (Default: 200)
35 – Human Jnav Work Path Lens (Default: 200)
36 – Computer Jnav Calls Per Frame (Default: 0)
37 – Human Jnav Calls Per Frame (Default: 0)
38 – Auto Guarding Off (Default: No)
39 – Blow Damage Off (Default: No)
40 – Camera Zoom On (Default: Yes) [Turns the zoom functionality off or on]
41 – Sound Volume (Default: 15)
42 – Music Volume (Default: 15)
43 – Sea On (Default: Yes)
44 – Island Level (Default: No) [Crashes the game if the value is changed]
45 – CD Track (Default: 1) [Changes the CD Track]
46 – Local Drag Select (Default: Off)
47 – Jnav Max Count (Default: 1500)
48 – Fog Of War (Default: Depends on map/level options) [Changes whether the fog of war is covering the world]
49 – Auto Use Vehicles (Default: No) [If changed to Yes then braves will automatically use boats and balloons to find wood across shores etc]
50 – Maintain Minimum Population (Default: Yes)
51 – Continuous Raise/Lower (Default: No)
52 – Allow Cursor Snap (Default: No)
53 – Game Turns Per Second (Default: 12)
54 – Draw Turns Per Second (Default: 20)
55 – Show Flat Areas Darkened (Default: No)
56 – Scaling Sprites Always (Default: No)
57 – Show Attack Areas (Default: No)
58 – Show Wood Search Data (Default: No)
59 – Check MapWho Integrity (Default: No)
60 – Use Building Entrance Alt (Default: No)
61 – Ok. (Default: No)
62 – Tooltips (Default: Yes)
63 – Auto Camera Adjust (Default: No)
64 – Lens Flare (Default: No)
65 – Panel Sound Effects Off (Default: No)
66 – Human Shaman Omnipresence (Default: No) [Transforms your Shaman into a God]
67 – Owned Target Select (Default: Yes)
68 – Autocast Spell (Default: Yes)
69 – Scrolling Tooltips (Default: No)
70 – Flip Rotation (Default: No)
71 – Auto Deselect (Default: No)
72 – Swap Rotate/Move (Default: No)

Note: The D3D version has 4 more items, so the numbers may not be correct.