Earth I researched what landmarks go where, and roughly where city placements should go. Added a 'space ship' (using terrain and stuff that was available), that houses the 2nd civ. And Mars being more Earth-like, but none of the planets are really accurate. With two 'alien' civs (just used Portugal and the Neanderthals). I didn't make it historic, and space is definitely very fantasy-like. You'll want to install the file to: Documents\My Games\beyond the sword\Saves\WorldBuilder and then select to play a scenario (custom scenario works, if you want to turn on/off features)
!sIRV0bAa!VdipD4XGLGX1fk-YB4-_ArDM5SVHeRscyJ5rrLGzHyI The MODDB version won't work with the map however, because it uses new water tiles they introduced so it will cause a crash when loading. I'm 287 turns in, and its still stable for me though. Its huge though (400 tile width, 112 tile height) so not every PC may be able to play on it. If you use SVN revision 9115 (or newer should work too (didn't test it though), but the newest SVN isn't stable right now, and they are releasing updates that will break saves), then this map is really epic. Its really stable (on revision 9115 or the moddb release version), and even more epic than before. While this is an old topic.the mod has updated A LOT since.