: A classic series where your units gain veterancy quickly, and you must survive increasingly absurd odds.

: This was the final official update for the game, released in 2005, and remains the base version for almost all custom AOD content.

: Many modern AOD maps include specialized boss waves that attack specific areas, such as the middle of the map, and require massive concentrated fire to defeat.

) have improved connectivity and fixed "disconnect bugs," making long AOD sessions more stable GenPatcher Utility

Key problems AOD set out to solve: