Keroro
Dororo: Ninja Frog

I don't think that a really detailed and involving scenario has yet been made about Alexander for Civ 3. So I decided to try to do it myself. It was rather harder than I thought it would be.

We start around the crossing of the Hellespont, and it is the player's option whether to kill off Alex at the historical time, having conquered Persia and parts of India, or to keep him alive for further expeditions against the Arabs, Mauryans, Romans or even Carthaginians. I have tried to get as many historical touches into the scenario as possible, so the player will find that Memnon of Rhodes will attack near the start, while two armies led by Darius should show up at the correct times.
The map is based on an ancient Greek map, and so cuts off large parts of asia and africa. I felt that this was more authentic than a modern map. The map is divided into sections that are blocked by terrain that cannot be linked by roads. So Persia does not have trade links with Bactria / Sogdiana or Asia Minor. India is not linked to the west at the beginning of the game, but can be linked later by building the Port of Charax wonder in the Gulf. Egypt will not be linked to the rest of the Medditerranean until the Port of Alexandria is built. This means (hopefully) that each province will behave in a different way, so it's difficult to keep Bactria productive, while Egypt is pretty happy to see you. The locations of the many cities of Alexandria are all marked on the map by a bonus resource ('Alexandria'), and if they are built in the correct order then they will all be named historically. The resources are placed with the interest of gameplay in mind rather than historical accuracy, but in many places these two things are one and the same.
The Macedonian army is, obviously, rather good in this scenario. The Phalanx is represented by numerous small armies (can hold two units and give +2 HP). These can move over all terrain without movement penalties, to represent the unexpected and deadly speed that gave Alex the edge over so many of his enemies. Road movement is 1/2, rather than 1/3 in vanilla civ 3, but all the units have a small rebase range (2 for slow stuff like artillery, 3 for most infantry, 4 for fast infantry and heavy cavalry, and 5 for the quickest cavalry like the Prodomoi) that should help with strategic movement around the map. The other races each have their unique units, several in some cases. So you'll face Persian Apple Bearers and chariot archers, and indian elephant riders in the appropriate places. I am experimenting on giving each race an excellent (but expensive) defender early in the game that will then upgrade into a kick ass (but cheap) attacker when Alex is due to arrive. Hopefully this will stop too many inter AI wars, and give the player challenges at the appropriate time. When Alex captures a new province he will usually get new troop types to build there. So players can build Bactrian Cavalry after they have secured a source of the 'Bactrians' resource, or Egyptian Phalangites after getting a source of 'Egyptians'.
Few cities will be able to grow into a Metropolis, but the limits for towns and cities are 10 and 20 pop, so they can get pretty big anyway. Only cities with a major port will be able to become a metropolis, and in this scenario a port can be built along a river as well as the coast, but you need a source of wood in the city radius. The buildings available are varied and, on the whole, pretty cheap. Most of the time you'll probably be building units, but temples to all the Greek Gods, and other Greek themed stuff is available. Many of the important cities have wonders that can only be built there, for instance, the only city that can build the Great Library is Nile Alexandria.
Comments welcome.