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Browser City Building Game Multiple Cities

Browser city building game with multiple cities or planets? OGame lets you build up to 9 colonies and manage a galactic empire — free to play.

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● Free-to-Play   ● Live since 2003   ● Active communities
Action to strategy
For every taste
Low requirements
Runs on older PCs
Active updates
Regular content

More Than One City: The OGame Empire System

City building games with multiple cities or locations are a popular genre — OGame transfers this concept to space and gives it a unique strategic dimension. Instead of cities, you build planetary colonies spread across multiple solar systems and galaxies. Each colony is a complete economic unit with its own buildings, production and fleets.

The crucial difference to other city builders with multiple locations: In OGame, each colony lies at a different position in the universe — with real consequences for flight times, strategic reach and vulnerability to attacks. Where you settle is a serious strategic decision.

From First Planet to Galactic Presence

Astrophysics: The Key to More Colonies

New planet slots are unlocked through Astrophysics research. Every second level of this technology allows another colony. With maximum Astrophysics level, up to 9 planets can be managed simultaneously — plus an additional slot for the Explorer class. The path to 9 planets is long and expensive: high-level Astrophysics is one of the most costly research technologies in the game, making the decision when to invest in new colonies strategically significant.

Moons as Bonus Locations

In addition to planets, moons can form — special celestial bodies created through battle debris fields. Each planet can theoretically have its own moon. Moons offer exclusive buildings: the Sensor Phalanx for spying on enemy fleets and the Jumpgate for instant transport between your own moons. A fully developed empire with 9 planets and multiple moons is the goal of ambitious long-term players.

Specialisation: Each Colony with Its Own Purpose

Experienced OGame players don't develop every planet identically. The strength of the multi-planet system lies in specialisation:

Empire Management: Overview Despite Complexity

Planet Switching in Seconds

OGame's interface enables switching between planets with one click. The overview page shows all colonies with resource status, ongoing building projects and fleet status at a glance. This overview is no small thing — with 9 active planets with running construction orders, fleets in the air and resource transports, a clear user interface is crucial.

Coordinating Fleets Between Planets

Resources can be moved between your own planets via transporters. This opens up an internal logistics system: surpluses from mining planets flow to shipyard planets, deuterium from deuterium-rich outer planets to inner systems. Those who optimise this internal flow have permanently more production capacity than players who manage each planet in isolation.

Why OGame is the Most Convincing Browser City Builder with Multiple Locations

FeatureOGame
Max. Colonies9 planets + moons
Specialisation possibleComplete
Strategic location choiceYes (galaxy position matters)
Download requiredNo
CostFree
PlatformBrowser + Mobile App

No other free browser city builder combines the depth of multi-planet management with genuine PvP tension and strategic positioning in the universe. Those who appreciate city builders with multiple cities and seek a more complex challenge will find a decades-proven answer in OGame.

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