"Dedicate" all your cities to Thor? Every so often some of the Teutonic tribes would go invade somebody solely for the purpose of destroying everything as a religious sacrifice. Well, you could have world-built a change to Vicky, Fin/Imp -- seems more appropriate. BTW an old English grad school chum said he was taught in school what a terrible king G3 was -- imposed harsh laws, lost several valuable colonies... JoeHollywood recommends 4 on the main island. Short term: tell me which AI to remove and I can do it for you tonight after I hand in today's essay. Longer term: Spoiler the gory details of the whole process : Start an Earth 18 game (or whatever scenario you actually want). Decide what civ to "delete" -- you'll actually replace this one with the Khmer. Suppose it's Germany. Open the WB and put a German settler wherever you want the Khmer to start and delete the other German units. Save the WB file. Edit the WB save file with your favourite text editor as TMIT showed. Search for "LeaderType=LEADER_FREDERICK". Change FREDERICK to your new leader. I'm not 100% sure of the spelling but it's probably just SURYAVARMAN_II Just below that find "CivType=CIVILIZATION_GERMANY" and change GERMANY to KHMER Look just a few lines earlier to find the team number, in this case "Team=7" Search much earlier in the file for "TeamID=7" which is in the midst of a BeginTeam/EndTeam block. Find the "TECH=" lines and change them to the Khmer starting techs. Fortunately for you, it's the same as the German techs, so there's no real work, but I include this step for completeness. This is the trickiest bit, and I'm not sure it's the easist way, but don't panic. Look for your starting settler: that is, look for a line saying "UnitOwner=7". This will be in the middle of a BeginUnit/EndUnit block that's within a BeginPlot/EndPlot block. Look just after the BeginPlot line to find X=something,Y=something; these are the coordinates of the tile where your settler will start. Go back and find where you have your LeaderType line; this is in a BeginPlayer/EndPlayer block. Find the line with "StartingX=something,StartingY=something" and change the "somethings" to whatever you found in the BeginPlot block. Save the WB file. There may be some artifacts in the file from the fact that you ran it as a game, such as AIs before yours in the list having created their cities. Run the WB cleaner with all options checked to get rid of these. This means your starting warrior/scout may be in a different location from when you created the initial game, but getting that detail right usually matters only for "Series" games. I daydream about writing an updated WB cleaner that will simplify stuff like this, e.g. change leaders/civs or add new ones. Anybody know if there are ways to mod the WorldBuilder itself? Edit: hmm. I wasn't aware that simply moving the settler sufficed for changing the civ's starting location like mad said. Are you sure this works if you change German to Khmer but then run as some other civ? I think that leaves the Khmer back in Berlin. In any case, the WBcleaner has an on-by-default option to clean up TeamReveal.