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Planet Building Game Online

The best planet building game online 2026: OGame offers deep planet management with mines, energy, research and up to 10 planets — free in browser, no download.

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

Your Empire Begins with One Planet

The first day in OGame is always the same: an empty planet, a handful of resources and a list of possible buildings. What you make of it determines the course of your galactic empire. OGame is a planet building game in its purest form — combined with multiplayer, conflict and galactic depth.

The building aspect is not an introductory tutorial that ends after a few hours. It is the permanent heart of OGame. Even experienced players are still busy years after starting to further develop their planets — improving mines, optimising energy production, efficiently setting up new colonies.

Buildings: What Emerges on Your Planet

Each planet has a limited number of fields — building slots for structures. Each building costs resources and time to build and takes up space. The field count makes planet management a strategic puzzle game.

Resource Buildings

Energy Buildings

Production and Research

Defence and Special Buildings

The Moon: A Second Development Path

Besides planets, players can obtain a moon — a small celestial body in orbit. Moons are created through moon chance after major battles in orbit. Moons have their own exclusive buildings:

A moon with sensor phalanx and jump gate transforms a player from reactive to proactive: they see what enemies are planning and can position their fleet in seconds.

Planet Size and Colony Choice: Building Game from the Start

Even choosing colony locations is a building game decision. Planet size (fields) depends on position in the solar system:

PositionFields (approx.)TemperatureSpecial Feature
1–3fewervery hotPoor deuterium production
4–6medium to manywarmGood compromise
7–9manymoderatePopular with miners
10–12mediumcoldHigh deuterium production
13–15fewvery coldBest deuterium production

Depending on strategy, players consciously choose their positions: miners prefer middle positions with many fields, deuterium specialists go to the edges, fleeters choose strategically close to enemies.

Collector Class: The Born Builder

Who wants to experience OGame primarily as a building game chooses the Collector class. Its bonuses make development more efficient:

Collector players grow faster, build more solidly and have more resources for research and fleet construction. The price: fewer combat bonuses than the General.

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