Asteroid Command has been set up through an international consortium in a race to save the human race...
They will not be able to destroy them all, people will die, cities will be wiped out... Can man escape the fate of the dinosaurs?
A real-time strategy and arcade game paying homage to the classic coin op Missile Command, the player needs to identify and destroy or deflect any object large enough to create mass destruction. They will have a series of tools at their disposal, some of which (in development) will not come online until well into the game...
Written intro... Then the game begins with the two asteroids impacting (the outcome different every time you play the game).
The first phase is analysis. The computers identify all the pieces on a crash course for earth or the moon. The list is filtered for only those large enough to take out small cities.
The second phase is planning, which resources to allot to which types of response. Also, resources must be allocated for civil defense (evacuation, sheltering in place, providing emergency infrastructure). This is a cost-effective mitigation measure for saving lives from the smallest NEO impact events and is a necessary part of mitigation for larger events. This phase plays like a resource management sim.
The third phase is action, target and launch missiles with the goal of destroying or altering the course of the asteroid. This phase plays like a space flight sim.
The final phase is final contact. Part of the defense is to launch laser satellites at key points in geosynchronous orbit over major continents to take out any remaining threats. This would be played arcade style shooting asteroids on their approach, as satellites become available with the rotation of the earth. Any missed asteroids would spawn animation of destruction and estimated body counts.
Playtime would be roughly an hour. 5 mins for analysis, 10 mins for planning, 30 mins for action, and 15 mins for final contact.