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Graviton Technology is the pinnacle of technological research in OGame. With a staggering cost of 300,000 Energy, only strong (or very cunning) players belonging to successful alliances can afford to research it. Due to its unusual cost (0 metal, 0 crystal, and 0 deuterium; 300,000 energy), its construction time is 0 seconds. It is a required technology for the construction of Death Stars.
- Research Lab Level 12
Is Required For:
The only realistic way to get the extra energy needed is from Solar Satellites.
As the amount of satellites makes you an extremely desirable target (due to the potential debris field), ideally you want to research it at a (remote) location where you are unlikely to be attacked. Be wary of other players watching your fleet number increase to catch your satellite production and send out their fleet to attack.
Thus, ideally the production and research should take no more than a day. This can be achieved with a Nanite Factory of level four or higher. In addition, many players improve Shipyard to a high level, essentially cutting the time of Satellite building by each additional level. On a planet in slot 1, it is possibile to produce the satellites in just 90 minutes, but that requires a Nanite Factory at level 7 (cumulative cost: 127 million metal, 63.5 million crystal, 12.7 million deuterium, 8 days)
To calculate how many satellites you need, turn off all of your mines, subtract your total energy from the basic cost, and divide this by the production per sat for the planet you are carrying out the research on. Planets closer to the sun will require fewer satellites, as they are hotter. Make sure you have enough resources available to build all the sats at once. You will also need the following on the planet : a Shipyard lvl 12 or higher, a Research Lab 12, and of course a Nanite Factory that is at least 3.
Once you have carried out the research, you will want to recycle the satellites. Get an alliance member or friend to attack in such a way that you can get one or more 20% moonchances out of it, unless you already have a moon or want to give up the colony. Make sure the fleet is big enough to wipe out your solar satellites, but not big enough to break through your defenses and take your resources. The best way to do this is to attack in several waves, each small enough to be defeated or taken to a draw by your defenses. Usually, the harvested crystal is offered as payment (especially if the defense inflicted losses to the attacker).
Another valid strategy, if one has enough real money to spend, is to use the relatively new resettlement option. You can resettle a planet with proper defences and buildings already in place to a number 1 position. Since resettlement only affects temperature, it will get you a much easier way of obtaining graviton. After graviton has been researched, you can use the energy for terraformers to expand a planet. If you don't have a moon yet, this would be the next step. One should keep in mind that resettlement is ONLY possible in the ranges of 1-3, 4-12 and 13-15. So the biggest possible planet to resettle to a number 1 position for Graviton Research is a number 3 planet, therefore you wouldn't be able to use your main planet. Since 2 resettlements cost 480 000 dark matter, one has to spend more or less 22 pounds, or obtain it by doing lots of expeditions; this is because it is rare for expeditions to find/produce/collect dark matter and when you do it is generally less than 200 so to get 480 000 dark matter you'd need 2400 expeditions that produce dark matter (realistically it is a FAR larger number).
Also, with the scrap merchant you could scrap the satellites, however you probably would get better benifits from getting a moon and terraforming the planet to get more fields.
- A totally useless, but interesting calculations show, that a level 58(59) Solar Plant will provide the needed 300,000 energy. It will, however, require around 10^12 metal and 5^11 crystal, and will take approximately 300 000 000 hours to complete (at 0 level Robotics Factory). This makes it 34224 years. You could always have 342 generations of people use the account :)
- Graviton FAQ v2 
|Technology / Research|