You know, I've never used the explorer. I've been playing Civ 4 since warlords came out. What's that, 7 years? I must have played...so, so, so many games, in fact I'm almost embarrassed to guess how many. Is it over a thousand? Could be, don't know...and I've NEVER USED AN EXPLORER. NOT ONCE LOL. I even play terra maps quite often, it's one of my favourite map types. Okay, next time I play a terra game I will try to use an explorer, just to see if it adds anything to the game, but I have to be honest, it probably won't. The new world is full of longbows and macemen by the time you get to it, so an explorer would likely get killed very quickly. I just don't see the use.