Slots determine how many fleet missions you can run at the same time. Every active fleet occupies a fleet slot until the mission is fully completed or has returned. Expeditions also have their own separate slot limit.
What determines fleet slots?
Your base limit increases with Computer Technology. Selected account bonuses can provide additional slots as well. More fleet slots let you run more transports, attacks, espionage missions and other flights in parallel.
How do expedition slots work?
An active expedition counts against both your general fleet-slot limit and the separate expedition-slot limit. Expedition capacity depends on Expedition Technology and relevant bonuses. A daily expedition limit also applies in addition to available slots.
Exact rules and formulas
Fleet slots: max(1, 1 + Computer Technology level + Admiral bonus + Commandant bonus). Active missions count against the limit, including returning or recalled fleets until the mission is fully finished.
Expedition slots: max(1, Expedition Technology level + Commandant bonus + Exploration Resort bonus).
An expedition consumes both a normal fleet slot and an expedition slot. A daily limit also applies. The built-in default is 10 expeditions per day, but the effective daily limit cannot be lower than the number of expedition slots: max(configured daily limit, expedition slots).
Example: Computer Technology 8 + Admiral 1 + Commandant 2 gives 1 + 8 + 1 + 2 = 12 fleet slots. Expedition Technology 4 + Commandant 2 + resort 1 gives 7 expedition slots.
FAQ — slots
Why can’t I send another fleet?
The most common reason is that all available fleet slots are occupied. Wait for an active mission to finish or increase your limit.
Does a returning fleet still use a slot?
Yes. The slot remains occupied until the mission is fully completed.
Fleet-slot progression examples
| Configuration | Result |
|---|---|
| Computer 0, no bonuses | 1 fleet slot |
| Computer 5, Admiral 0, Commander 0 | 6 fleet slots |
| Computer 10, Admiral 3, Commander 2 | 16 fleet slots |
| Expedition Tech 1, no bonuses | 1 expedition slot |
| Expedition Tech 6, Commander 2, exploration resort 3 | 11 expedition slots |
Each Computer Technology level effectively adds one normal fleet slot on top of the base slot. Each Admiral and Commander level also adds one. Expedition slots use Expedition Technology, Commander levels and the exploration-resort bonus.
Daily-limit example: the server configuration defaults to 10 expeditions per day. If a player has 11 expedition slots, the daily limit cannot be lower than 11, so the rule becomes max(10, 11) = 11.
When is a slot released?
A fleet slot remains occupied while the fleet is returning, after a recall, while holding, and during arrival/return processing states. It is released only after the mission is fully finished. Pressing recall therefore does not immediately create a free slot.
An expedition must pass both limits at the same time: one normal fleet slot and one expedition slot must be free. You may therefore have an unused expedition slot but still be unable to launch because every normal fleet slot is occupied.