Cortex Command is a 2D action-strategy game developed by Data Realms. It is set in a science fiction universe where players take the role of a commander, controlling a band of mercenaries to fight for control of a planet. The game features a unique blend of real-time strategy and side-scrolling action, allowing players to create and control an army of robots, soldiers, and aliens to battle for resources and territory. Cortex Command also has a sandbox mode, allowing players to customize their own levels, weapons, and characters. The game also features online multiplayer, allowing players to battle against each other in custom maps and game modes. Cortex Command is available on multiple platforms, including Windows, Mac, Linux, and iOS.
OpenLieroX is a good alternative to Cortex Command due to its large community, and it is also an independent game.