So many great memories playing custom scenario maps on AOM back in 2005-2006. I still have some of the maps but I lost my own "Lobster Escape" creation.
Also fun fact, around 2013 I discovered that the original ESO multiplayer servers were still online and hosted by Microsoft, the game didn't allow you to login because the SSL certificate was expired, but Fiddler2 actually got around that issue and I was able to login with my old ESO account details (these were originally created as live/hotmail accounts with a custom domain).