At last! Now I enjoy new unit. Some hints HOWTO do that. First of all, unlike to original Civ3, C3C is quite sensitive to content of files such as: PediaIcons.txt and Civilopedia.txt. So keep it in mind when adding a unit. Now step by step HOWTO> 1. Remove Read-only attribute from Conquests.biq. 2. Start editor and add new unit. NB!!! Dont forget to assign the appropriate PRTO value. You will need it later. Example> Mounted Archer and PRTO_Mounted_Archer 3. Create a new subfolder under ..\conquests\art\units. Folder name have to be the same as new unit name. In our case> Mounted Archer 4. Fill this new folder with flicks and wavs. .INI file name must be the same as new unit name> Mounted Archer.INI NB!!!! .INI file now is sensitive to sound files assignment. If C3C finds mismatch game quits. 5. Now open C3C's PediaIcons.txt and find PRTO_ section for units and add at any place you like these lines> #ANIMENAME_PRTO_Mounted _Archer Mounted Archer 6. Civilopedia. You have to modify it. Otherwise game quits with "...ANIMENAME_ ..." error when game encounters your new unit. At this point you may choose to go easy or right way> a. Easy way. For experienced players who feels that there is no need in Civilopedia. Just rename Civilopedia.txt to something else. Personally I used this choise. b. Right way. For modders and such. You have to fill it with appropriate content. Find HOWTO in this forum. And main things is: You have to start new game in order to changes take an effect.