Various cheats
     Edit the file "config.cfg" in the "My Documents\Hunting Unlimited 3\" 
folder.

Change the line:
uset g_console "0" 

to:
uset g_console "1" 

     In the menu system or hunting mode, press [~] (tilde) to open the
console, then type any of the following codes:

Cheat code:             Result:
gimme_tierz             Unlock All Tiers
g_sun                   Change Sun
g_set_fov               Set FOV
g_set_time              Set Date/Time
cheat_animals           Unknown Effect