Launching an invasion against an empire. Invasions are one of many attack types including guerilla warfare, nuclear and chemical strikes.

The planetary market. There are ten planet types (food, mining, supply, research, etc) each providing critical resources to help grow your empire.

The turn summary screen. Starpires is turn based with players accruing additional turns over time.

The military market where players can purchase military units ranging from troops to heavy cruisers.

There are dozens of technologies and upgrades that can be researched.