From Starfleet Commander
The Oracle is a special building that allows you to see fleet movements of nearby planets. This fusion-powered device can only be built on moons, and each scan of a planet costs 5,000 hydrogen. Scans are done from the galaxy page, or the scans page, which only moons have.
- The Oracle shows all fleet movements except harvests, colonizations, and fleets which have been recalled.
- Unlike a probe, you do not receive a notification if a player uses the Oracle to scan your planet.
- The Oracle may only scan a planet (or a Hephaestus class roving attack platform), never a moon or debris field. It shows all fleets going to the scanned planet (or Hephaestus class roving attack platform), as well as the planet (or Hephaestus) owner's fleets which are based there but moving away.
- The Oracle can also see any ships participating in a Group Attack when they are grouped with a fleet outbound from the scanned planet, even when they originate from and target two different planets which are both not the planet scanned. (See section below for clarification.)
- The Oracle can see any Group Defend fleets while they are in orbit. However, ships belonging to the planet (or Hephaestus) owner are not visible via Oracle while they are stationary. (For that, use probes.)
- Players in Diplomacy Mode may not use, or be targeted by, an Oracle. However, an Oracle may be used during the entering-diplomacy transitional period. When in full Diplomacy Mode, the Oracle owner will continue to see Oracle scan icons in the Galaxy Screen, but attempting to use one results in an error message.
- An Oracle can be used to scan planets in newbie mode which would otherwise be attackable.
- The Oracle cannot detect a Hephaestus class roving attack platform while it is in motion, since there is no 'source' planet to scan.
- However, an Oracle can be used to track changes to an Hephaestus' redeployment location. See the Hephaestus page for details.
Impact on Fleetsaving
Because the Oracle can see most fleet types, there are only a few ways safe to fleet save if one is in your area.
- Harvest missions are safe from Oracles.
- Colonization missions are safe from Oracles.
- Recalled missions are safe from Oracles.
- Any mission between moons. Because the Oracle can only scan planets, any mission launched from a moon that goes to a moon cannot be detected. For instance, deploys or transports sent from one moon to another.
(EXCEPT that any fleets involved in a Group Attack are visible if another of the Group Attacking fleets is spotted.)
Range and Costs
The range of the Oracle depends on its level and is:
Range = (Oracle Level)2 - 1
|Level||Ore Cost||Crystal Cost||Hydrogen Cost||Distance|
|1||20,000||40,000||20,000||0 (same solar system only)|
|2||40,000||80,000||40,000||3 Solar Systems Away|
|3||80,000||160,000||80,000||8 Solar Systems Away|
|4||160,000||320,000||160,000||15 Solar Systems Away|
|5||320,000||640,000||320,000||24 Solar Systems Away|
|6||640,000||1,280,000||640,000||35 Solar Systems Away|
|7||1,280,000||2,560,000||1,280,000||48 Solar Systems Away|
|8||2,560,000||5,120,000||2,560,000||63 Solar Systems Away|
|9||5,120,000||10,240,000||5,120,000||80 Solar Systems Away|
|10||10,240,000||20,480,000||10,240,000||99 Solar Systems Away|
|11||20,480,000||40,960,000||20,480,000||120 Solar Systems Away|
|12||40,960,000||81,920,000||40,960,000||143 Solar Systems Away|
All fleets involved in a Group Attack are visible if any planet involved in the attack is scanned. For example, take this situation:
Let us assume that Attackers 1, 2, 3, and 4 have chosen to Group Attack the Target. Should the Oracle owner scan Attacker 3's planet, they would be able to see all four attacker's attack fleets. This despite the fact that Attacker 1's planet is out of range, Attacker 2 launched from a moon (which could not be scanned even if it were in range), and Attacker 4 launched from a different galaxy (which by definition is out of range regardless of the Oracle level). The Target planet is also out of range.