From today, Age of Empires III (2007) will no longer be available for purchase. After many years of support, we will be retiring the title from sale. Age of Empires III: Definitive Edition will continue to be supported. In addition, on October 30, 2024 at 10am PT multiplayer services for the game will cease to run. This is due to the technology no longer being supported. If you own the game, you will still be able to play campaign and skirmish content.
I think the home city shipments, training on blocks of 5, and no resource drop-off were vast improvements.