Computer Technology is the most underappreciated research in OGame. It does not explode enemy ships, it does not speed up your drives, and it does not colonize new planets — but without it, every other advantage you build is throttled by a single hard ceiling: the number of simultaneous fleet missions you can dispatch. Every level of Computer Technology grants you one additional fleet slot, and on a speed server where raids, expeditions, and transports all compete for that finite pool, running out of slots is the fastest way to leave resources on the table.
Fleet Slots: Your Real Operational Constraint
Every new OGame account begins with a base of one fleet slot. Research into Computer Technology adds one slot per level, so a player at Computer Tech 10 commands eleven simultaneous missions. That number sounds comfortable early on, but it erodes quickly once you understand how missions actually consume slots.
Each of the following counts as exactly one fleet slot:
- An attack or raid on an enemy planet or moon
- A transport mission (sending resources to yourself or an ally)
- A deployment to a moon or secondary planet
- An expedition into open space
- An ACS (Alliance Combat System) fleet joining a group attack
- A recall order — the return leg of an already-dispatched fleet does not consume a new slot, but recalling and re-sending does reset and consume one
- A fleet save (FS), whether to a nearby debris field, a distant planet, or a holding position
The hidden cost players forget is the fleet save. An active player on a war-heavy universe may run two to four fleet saves simultaneously — one for each planet's fleet — occupying slots that could otherwise be earning resources. Combine that with active expeditions, ongoing raids, and routine transports, and Computer Tech 10 can feel genuinely cramped even in the mid-game.
Understanding slot pressure is step one. The rest of this guide is about managing and expanding that pressure intelligently.
Computer Technology Progression: Costs, Gains, and Breakpoints
Computer Technology costs Metal 0 / Crystal 400 / Deuterium 600 at level 1, doubling each subsequent level. It has no prerequisite beyond a Research Lab at level 1, making it immediately accessible — which is precisely why there is no excuse to neglect it early.
Key progression checkpoints to target:
| Computer Tech Level | Total Fleet Slots | Typical Phase |
|---|---|---|
| 4 | 5 | Early game: 2 raids + 1 expo + 1 transport + 1 FS |
| 8 | 9 | Mid-game raider baseline |
| 12 | 13 | Active raider + expedition runner |
| 16 | 17 | Multi-planet ACS attacker |
| 20+ | 21+ | Alliance war coordinator, full expedition cap |
The research cost doubles per level, so levels 1–8 are relatively cheap and should be prioritized in your early research order. Levels 9–14 represent a significant crystal and deuterium investment but unlock the slot counts needed for parallel expedition and raid operations. Beyond level 14, each level's cost eclipses most other research upgrades — push there only when you have the economy to sustain it without crippling your shipyard queue.
One important interaction: the Admiral Commander (available through the in-game shop) grants one additional fleet slot on top of your Computer Tech total. On OGames, where all three universes offer generous weekly Dark Matter bonuses, activating Admiral early is a realistic option that effectively gives you one free Computer Tech level's worth of slots.
Slot Budgeting: Raids, Expeditions, and Logistics
Once you understand the slot ceiling, the next skill is allocation. Think of your fleet slots as a budget with three main spending categories: combat operations, expeditions, and logistics. Getting the ratio right for your playstyle is the difference between a self-sustaining economy and constant resource shortfalls.
Combat Slots (Raids and Attacks)
Raids are the highest-variance slot usage. A fast raid on a nearby inactive with Light Fighters returns in minutes, freeing the slot almost immediately. A deep-galaxy attack with Battlecruisers can occupy a slot for 30–90 minutes depending on server speed. On speed universes, slot cycling is fast enough that even two or three raid slots can generate enormous throughput — but only if you are actively watching and recycling them.
Veteran raiders typically reserve 30–40% of total slots for active combat, adjusting upward during active farming sessions and downward during quiet periods when expeditions can fill the void passively.
Expedition Slots
Expeditions have a separate hard cap: the number of simultaneous expeditions you can run equals half your Astrophysics level, rounded up. This means Computer Tech alone cannot unlock more expedition missions than your Astrophysics allows — the two research trees are co-dependent. Read the full breakdown in the Astrophysics guide to understand how to synchronize both caps.
What Computer Tech does is ensure you have enough remaining slots after expeditions to still run raids and transports. A player with Astrophysics 10 (five expedition cap) but only Computer Tech 8 (nine total slots) has just four slots left for everything else — a meaningful pinch if that player also needs to fleet-save two planets.
Logistics and Fleet Saves
Logistics slots are the most underbudgeted category. Transporting deuterium to fuel planets, moving resources to your main planet for spending, and shuttling ships between moons all eat slots silently. Rule of thumb: budget at least two slots per active planet for fleet saves and logistics. If you run three planets and a moon, that is eight slots reserved before a single raid launches.
Efficiency hack: merge small transport missions whenever possible. One large transport on a single slot beats three trickle transports on three slots. This sounds obvious but gets forgotten during frantic raid sessions.
Slot Pressure on Speed Servers: Why It Hits Harder
On a 1x universe, a fleet sent across nine galaxies might occupy a slot for six to twelve hours. The slow return cadence means you naturally have breathing room — a slot frees up before you need it again. Speed servers eliminate that buffer entirely.
In OGames' Andromeda universe (50x fleet speed), a cross-galaxy expedition that would take eight hours on 1x completes in under ten minutes. That is phenomenal throughput — but it also means your expedition slots cycle so quickly that lacking them becomes the constraint, not your ship count. The same principle applies to raids: you can send and receive a dozen raids in the time a 1x player launches one.
In Nebula (99x fleet) and Proxima (200x fleet), slot pressure is even more acute. Proxima players with strong economies can cycle raid slots every few minutes during peak sessions. At that cadence, the difference between Computer Tech 10 and Computer Tech 16 is not six slots — it is potentially dozens of additional raids per hour, compounding into hundreds of millions of resources over a session.
This is why experienced players on speed servers treat Computer Technology like a core infrastructure investment, not an optional upgrade. The research itself produces no ships and fires no weapons, but it multiplies the effectiveness of everything that does. For a broader view of which research trees drive growth, the energy and hyperspace tech guide covers the drive-side of fleet scaling.
When to Prioritize Computer Technology
The honest answer is: almost always earlier than you think. Here are the specific decision triggers that should prompt you to queue the next Computer Tech level immediately:
You Are Fleet-Saving More Than Raiding
If fleet saves are consuming more than a third of your total slots, your slot pool is too small for your fleet size. Push Computer Tech until you can fleet-save comfortably and still launch offense.
Your Expeditions Are Slotted but Your Raids Are Not
Some players reach high Astrophysics levels and fill all expedition caps, then realize they have nothing left for raids. This is a pure Computer Tech problem. Each new level buys back a raid slot without touching your expedition allocation.
You Are Active More Than Two Hours Per Day
Passive players can live at Computer Tech 8–10 because they are not cycling slots rapidly. Active players who log in for multiple sessions should target Computer Tech 12+ by the time they have a second colony, and 16+ before expanding to a third planet. The more sessions you play, the higher the return on each additional slot.
You Are Running ACS Operations
Alliance Combat System attacks require each participating player to dispatch their own fleet, each consuming a separate slot. Coordinating group attacks while also maintaining individual fleet saves can temporarily exhaust even a deep Computer Tech investment. If your alliance runs regular ACS operations, treat Computer Tech 14–16 as a minimum requirement before participating as a primary attacker.
You Are Being Attacked Regularly
Under attack pressure, you may need to fleet-save on short notice while simultaneously recalling income fleets and coordinating defensive maneuvers. Slot poverty during a war is a genuine strategic vulnerability. Defensive play actually demands more Computer Tech than offensive play, not less.
Advanced Slot Optimization Techniques
Beyond simply leveling Computer Tech, veteran players squeeze extra efficiency from their existing slot pool through a few reliable techniques:
Expedition Timing Synchronization
Send all expeditions simultaneously so they return in a tight window, freeing all expedition slots at once. This means you have a burst of free slots periodically rather than a constant trickle — useful for scheduling raid sessions around expedition returns.
Mission Stacking on Single Targets
Rather than sending three separate spy-then-raid sequences on three different targets (six slots: three spy probes + three raids), scout multiple targets on one probe trip using the same mission slot when geographically clustered. Attack sequentially from the intelligence gathered, cycling the one combat slot rather than opening multiple simultaneously.
Deuterium Depot Planet Positioning
Placing your deuterium production planet close to your main military staging planet reduces the travel time on transport missions, which shortens how long each logistics slot is occupied. A well-placed fuel depot planet can effectively function like half a free Computer Tech level in terms of slot availability.
The Admiral + Computer Tech Compound
On OGames, Dark Matter income is generous across all universes — Andromeda players receive 5,000 DM at signup plus 1,000 weekly; Nebula gives 10,000 at signup plus 10,000 weekly; Proxima provides 20,000 at signup plus 50,000 weekly. This makes sustaining the Admiral Commander financially realistic for most active players, effectively granting a permanent bonus slot on top of your research investment. Treat Admiral as a force multiplier on Computer Tech, not a substitute for it.
Putting It Together: A Slot Allocation Framework
Here is a practical slot allocation framework for a mid-game speed server player with Computer Tech 12 (thirteen total slots), three planets, and Astrophysics 8 (four expedition cap):
- Fleet saves: 3 slots (one per planet)
- Expeditions: 4 slots (full Astrophysics cap)
- Active raids: 4 slots (cycling, primary income)
- Logistics buffer: 2 slots (transports, repositioning)
That is thirteen slots fully allocated with zero margin. One unexpected ACS invitation, one emergency fleet save on a fourth moon, or one extra transport and the budget breaks. This is exactly the slot pressure that makes Computer Tech 13 or 14 feel transformative — not because the extra slot is individually powerful, but because it changes the operational ceiling from barely adequate to flexible.
If you are newer to the research tree decisions that underpin this kind of mid-game planning, the drives guide covers the propulsion research that determines how quickly your fleet slots cycle, which directly affects how many effective missions per hour each slot produces.
FAQ
Does Computer Technology affect expedition results or just the number of expeditions I can send?
Computer Technology only controls your total fleet slot count — it has no effect on expedition outcomes, loot quality, or ship finds. Expedition results are influenced by the size and type of the fleet you send, your Astrophysics level, and server RNG. Computer Tech simply ensures you have enough slots to run expeditions without sacrificing other mission types.
Is there a cap on how high Computer Technology can go?
There is no hard cap in the game formula. Practically speaking, the doubling cost curve makes levels beyond 20 extremely expensive relative to the single-slot gain. Most competitive players on speed servers cap their active investment between levels 14 and 18, where the cost-to-benefit ratio still favors Computer Tech over alternative research spending.
Does the Admiral Commander stack with Computer Technology?
Yes. The Admiral Commander adds one slot permanently on top of your Computer Tech total. A player with Computer Tech 12 and an active Admiral Commander has fourteen fleet slots. On OGames, where weekly Dark Matter income makes Commander activation straightforward, this is one of the most cost-effective slot gains available early in the game.
Why does slot budgeting feel different on Proxima versus Andromeda?
Proxima runs at 200x fleet speed compared to Andromeda's 50x. At 200x, fleet missions complete four times faster than on Andromeda, meaning each slot cycles through missions at four times the rate. The same eleven slots produce roughly four times more raid throughput per hour. This makes slot shortfalls more painful — idle slots cost proportionally more potential income — and slot upgrades proportionally more valuable.
Should I ever delay Computer Technology to invest in combat research instead?
In very specific early-game windows, yes. If you are facing an immediate threat and need to push Weapons or Shielding levels to defend, a short delay on Computer Tech is acceptable. Refer to the weapons, shielding, and armour guide for the defensive research thresholds worth prioritizing. Outside of those emergency windows, Computer Technology should take precedence over most mid-tier combat research because slot count is a multiplier on every other activity you perform — including combat.
If you are ready to put these principles into practice on a server where fleet cycles are fast enough to feel the difference immediately, register on OGames and choose the universe that matches your pace. Andromeda offers a measured introduction to speed-server slot management, while Proxima throws you straight into the deep end — where Computer Technology stops being a background research and becomes the axis your entire operation rotates on.