Inter-War is a browser-based space strategy game where you develop your own planets, build a powerful economy, research new technologies, and create a fleet capable of exploring and fighting across the galaxy.
Every stage of your empire requires planning. You decide when to invest in mines, when to focus on research, and when your resources should be used for ships, defenses, or further expansion.
Develop planets and build your economy
Metal, crystal, and deuterium form the foundation of your economy. They are produced by buildings on your planets, and their production depends on mine levels and the amount of energy available.
A stable economy gives you the resources required for new buildings, research, defenses, and fleet development. As your empire grows, efficient resource production and storage become increasingly important.
Learn more about resources and energy in Inter-War.
Research technologies and unlock new possibilities
Buildings develop individual planets, while research opens new possibilities for your entire empire. Progressing through technologies allows you to access more advanced stages of the game.
The order in which you invest your resources matters, especially during the early game. If you are just starting, see what to build first in Inter-War.
Build a fleet and explore the galaxy
Your fleet can transport resources, perform reconnaissance, attack selected targets, and carry out other available missions. Every flight requires appropriate ships, a destination, and enough deuterium for the journey.
How you build and use your fleet depends on your strategy. You can focus on economic development, actively search for targets, or combine several styles of play.
Read the guide explaining how to send a fleet in Inter-War.
Gather intelligence before you attack
Information plays an important role in strategic decisions. Espionage probes allow you to gather information about potential targets before committing your fleet to a mission.
Checking an opponent's resources, defenses, or fleet helps you evaluate the situation and choose a more suitable strategy.
Learn how espionage reports work in Inter-War.
A space strategy game directly in your browser
Inter-War runs directly in your web browser, so you do not need a separate game client to manage your empire.
The game rewards long-term planning. Decisions made during the early stages influence how quickly your planets, technologies, and fleet can develop later.
How do you start playing Inter-War?
Create an account, log in, choose an available universe, and begin developing your first planet. Start with a stable economy and energy supply, then gradually unlock additional options.
Visit the Inter-War guides or browse the Inter-War FAQ for more information about individual game mechanics.
FAQ — browser space strategy game
What is Inter-War?
Inter-War is an online space strategy game that runs in a web browser. Players develop planets, produce resources, research technologies, build fleets, and manage the long-term growth of their empire.
Do I need to install the game?
No. Inter-War can be played directly through a compatible web browser.
What should I focus on when starting?
During the early game, focus on resource production, sufficient energy, and gradually unlocking the buildings and technologies required for further development.