Two left, let's give them a final chance with a fourth hint before I post these five tonight.
#40: Probably the coolest special edition I own is the one for this game, it comes with a wooden miniature of an Onager that you could build yourself.
Hint 2: At launch the game was criticised pretty heavily by players however. With a slew of updates adding things like a family tree and overhauled politics, much of this criticism has subsided.
Hint 3: It also features something that was sadly cut again in entries after this game's direct sequel, namely that cities would 'grow' on the map as you upgraded them instead of cities being represented by a sort of 'model'.
Hint 4: It did have the downside that there are only a maximum of six slots for buildings (depending on the maximum city-size of a particular city) and even just five plus a port if it is by the sea.
#37: Technically just a sprite swap of another strategy game, and considering the franchise this is part of, shouldn't they have done more?
Hint 2: The basis for this game is a famous rts from an otherwise completely unrelated franchise and developer, but my game's gameplay is basically exactly the same, down to the building types and technology (in the sense of advancements and upgrades for the purpose of the gameplay).
Hint 3: For example the original game's 'Barracks' is now a 'Troop Center', the 'Castle' a 'Fortress' and the upgrade 'Heated Shot' is 'Ion Accu-Accelerator'.
Hint 4: Resources too, though 'Food' remains 'Food', 'Wood' is now 'Carbon', 'Gold' is 'Nova Crystals' and 'Stone' is 'Ore'.