I am sorry, is this Play the world some extension you have to purchase? and I cannot edit this game....why is this so easy for everyone else???
It's 'easy' for everyone else because we've been doing it a long time. Naturally, we tend to assume (I do, at least) that if I
can do it, surely others can as well.
I don't recall exactly how to do it in Vanilla Civ3, but there is a .ini file tweak to up the maximum number of turns.
So here's a quick tutorial for you.
Open Windows Explorer. Navigate to C:\Program Files\Infogrames Interactive\Civilization III. Find the file civilizationiii.ini. It might be called something else, but it's going to the only file that ends in .ini. Under the type of file it's going to say 'Configuration Settings', if you have Hide Known File Types active.
Open the file. There should be a line that says Turn Limit
. If it's not there, go ahead and add it. It can be from 1 to 1000. Obviously, the higher you set it, the more turns you get. The default number of turns is 540
, so set it to a number higher than that. After 1850ad, the turns go one year to a turn, so bumping it from 540 to 1000 will have the game end at 2510ad.
Let us know if this works out for you....