Online space strategy
Inter-War is an online space strategy game played in your browser, where progress continues beyond a single session. You begin with one planet and gradually turn it into part of a larger empire. Resource production pays for infrastructure, research opens fresh options, and every choice shapes the goals that follow. A shared, lasting universe puts players in the same world: you can build at your own pace, watch the galaxy, or adapt to changing opportunities. Because the game runs in a browser, it is easy to return for an important decision, inspect a report, or prepare the next move. Long-term planning across economy, technology, and your preferred style of play remains at the heart of Inter-War.
See why Inter-War suits players looking for games like OGame.
Economy and planets
Every planet is an independent centre of development. Metal, crystal, and deuterium fund infrastructure, technologies, and an active fleet. Energy matters just as much: without a balanced supply, mines cannot reach their intended output. Over time, you decide whether a world should strengthen production, provide fuel, store resources, or support the logistics of your empire. Gathering resources is only the start; planning investment order, storage, and transport between worlds gives those resources purpose. Even a short construction decision becomes part of a wider strategy, and a healthy economy stays valuable through every phase of play.
Research and technology
Research improves the whole account rather than a single planet. New technologies unlock buildings, ships, and different ways to act across the galaxy, so a well-chosen research path sets the pace of future growth. You may invest in production support, logistics, drives, or combat options. Requirements mean that larger ambitions need preparation: develop laboratories, collect the required resources, and choose the right time to begin a queue. Technology is not separate from the economy; it connects production with expansion and fleet activity. When you need a precise requirement or mechanic, the help materials provide the detailed answer without turning the homepage into a manual.
Planet colonization
A new planet is more than another point on the map. Colonization expands the capacity of your empire by creating another place for production, infrastructure, storage, and fleet operations. Before sending a mission, it helps to choose the future colony’s role: it can strengthen the economy, supply deuterium, shorten logistics, or extend your reach into another part of the galaxy. Position affects later choices, so expansion works best as part of a plan rather than a race for any empty slot. Once a colony is founded, a new management stage begins: transporting resources, building energy capacity, and fitting that world into the wider network. Multiple planets are what turn a starting base into an empire.
Space fleet and missions
In Inter-War, a fleet is more than a weapon. Ships move resources between planets, gather intelligence on targets, run expeditions, and perform missions that can change the position of an entire empire. Every flight calls for a decision about its target, composition, speed, fuel, and timing. Espionage helps you judge risk, transport keeps several colonies growing, and combat operations reward preparation and reliable information. Fleet growth works best alongside an economy, useful technologies, and enough available mission slots. This lets you choose an activity that fits your style: careful logistics, exploration, or a more competitive approach to the galaxy.
Alliances and a shared universe
A shared universe brings together players with different goals and different speeds of growth. You can build alone or join an alliance to exchange information, coordinate plans, and take part in the community. The galaxy makes more than buildings and ships matter: observing your surroundings, communicating clearly, and developing a strategy all have value. An alliance does not replace your own choices, but it can expand opportunities for cooperation and give long-term play an additional social dimension.
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