We plan to include Mac players in future BtS GOTM competitions (BoTMs). In order to do this we need to have a Mac-compatible version of the HoF mod for BtS (BUFFY). The Hall of Fame team have now released version 3 of BUFFY, their adaptation of the BUG mod for use in HoF competitions. This is based on a Mac-compatible version of the BUG mod (BtS Unaltered Gameplay), and I have therefore created the first MacBUFFY release based on this code. You can download MacBUFFY HERE To install it, unzip the downloaded file and put the resulting folder in /Applications/Civilization IV/Beyond the Sword/Mods/. If you have installed Civ4 somewhere other than in /Applications/ then choose the equivalent location on your system. UPDATED Feb 28 - Please note the above installation location has changed. To load it, select Advanced->Load A Mod from the main BtS menu, and select MacBUFFY-3.19.003. The software will restart and load MacBUFFY. You can set up Beyond the Sword to load MacBUFFY automatically when you launch it by editing the ~/Documents/Beyond the Sword/CivilizationIV.ini file using TextEdit or another text editing application. Change the following lines in this file: ; Specify a Mod folder (Mods\Mesopotamia), '0' for none Mod = 0 to: ; Specify a Mod folder (Mods\Mesopotamia), '0' for none Mod = MacBUFFY-3.19.003 You can play random games using MacBUFFY, and I encourage you to do so in order to test it before the next BoTM starts in a few days. When you play your own game, you will be warned that it will not be eligible for the HoF competitions, but you can safely ignore the warnings for your private games. The warnings will not appear when you use the mod to play BoTM start files. [UPDATE] If you get an error message when you try to load a BOTM start file, saying the file has been protected, check that you have installed MacBUFFY correctly according to the above instructions. If you think it's correctly installed, download, unzip and run the MacAssetsCheck application attached to this post. This will compare your Civ4/BtS/MacBUFFY installation against the one used to create the BOTM start file, and list any differences it finds. [UPDATE June 20, 2010] MacAssetsCheck should now find a copy of the STEAM BtS installation. It also now supports Drag and Drop, so if it doesn't find your copy of the Civ4 application folder when it launches, or finds the wrong one, you can drag it from the Finder onto the MacAssetsCheck window.