Game Guide

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ACS — Allied Combat System

The Allied Combat System (ACS) is the multiplayer combat coordination feature of Age of Space. It allows multiple players to combine their fleets into a single attack force or station defensive fleets on an ally's planet. ACS transforms individual skirmishes into massive coordinated operations, letting alliances take down targets that no single player could defeat alone. This chapter covers both ACS Attack and ACS Defend, step by step, with timing strategies and advanced coordination techniques.

What Is the ACS?

The Allied Combat System (ACS) is a set of two coordinated fleet operations that let multiple players work together in combat. It is the backbone of alliance warfare in Age of Space, transforming the game from solo play into true team strategy.

ACS has two modes: ACS Attack (multiple players attack one target together) and ACS Defend (send your fleet to defend an ally's planet). Both require either alliance membership or a buddy list connection between the participating players.

Without ACS, heavily defended players would be nearly invincible — no single attacker could muster enough firepower. ACS changes the math entirely, allowing coordinated alliances to project overwhelming force against any target.

ACS Attack: Coordinated Assault

ACS Attack lets multiple players send their fleets to attack the same target at the same time. All participating fleets merge into one combined force for a single battle. The attacker with the most firepower doesn't fight alone — every participating fleet contributes ships, firepower, and shields to the combined attack.

In an ACS Attack, all fleets arrive within a coordinated time window and fight as one unified army against the defender. The battle uses standard combat mechanics, but with the combined fleet strength of all attackers. This means an alliance of 5 mid-level players can defeat a single top-ranked player by pooling their fleets.

After the battle, each participant's surviving ships return to their own planet independently. Loot (stolen resources) is distributed among participants based on their cargo capacity. Debris from the battle can be recycled by whoever arrives first with recyclers.

How to Set Up an ACS Attack

The lead attacker sends a normal attack mission to the target planet. This fleet becomes the anchor for the ACS group.
After sending, the lead attacker opens the fleet movement screen and finds the outgoing attack. There will be an option to create an ACS group and share the link.
The lead attacker shares the ACS group link with allies via alliance chat, private message, or external communication.
Allied players open the shared link and send their own fleets to join the ACS group. Their fleets are now synchronized with the lead attacker's fleet.
All fleets adjust their speed to arrive at the same time. The system coordinates arrival so all fleets land within the ACS time window.
When the fleets arrive, they merge into a single force and battle the defender together. After the battle, surviving ships return home separately.

ACS Defend: Allied Reinforcement

ACS Defend lets you send your fleet to park on an ally's planet (or moon) as a defensive reinforcement. Your fleet stays there indefinitely until you recall it, acting as an additional defense layer for your ally.

While stationed on an ally's planet, your fleet will automatically participate in any battle that occurs there. If an attacker hits the planet, your defensive fleet fights alongside the planet's own defense and any other stationed fleets. Your ships are treated as defenders in the combat calculation.

To set up ACS Defend, simply send your fleet to your ally's planet with the "Hold" mission (also called "Station" or "Stay"). Your fleet will fly to the planet and remain there. You can recall it at any time by clicking the fleet movement and selecting recall.

How to Set Up an ACS Defend

Open the Fleet page and select the ships you want to station at your ally's planet.
Enter your ally's planet coordinates as the destination.
Select "Hold" (Station) as the mission type. This keeps your fleet at the destination.
Confirm and send. Your fleet will fly to the planet and remain stationed there.
Your fleet now defends the planet automatically against any incoming attacks.
To recall your fleet, go to fleet movements and select the recall option on the stationed fleet.

ACS Attack vs ACS Defend

	ACS Attack	ACS Defend
Purpose	Combine fleets for one massive attack	Station fleet on ally's planet as defense
Duration	One-time battle, then fleets return home	Fleet stays until recalled
Participants	Multiple attackers vs one defender	One defender reinforced by ally fleet(s)
Requirement	Alliance or buddy list	Alliance or buddy list
Fuel	Each player pays their own fuel (one way)	Fuel for travel; stationed fleet consumes Deuterium over time
Loot	Distributed by cargo capacity	No loot (defensive mission)

Timing and Coordination

The most critical aspect of an ACS Attack is timing. All participating fleets must arrive within the ACS time window. If a fleet arrives too early or too late, it won't participate in the combined battle and will fight alone — potentially getting destroyed.

Coordinate via alliance chat to agree on an arrival time. Players closer to the target will need to slow their fleet speed so they don't arrive early. Players farther away may need to launch earlier. The ACS system helps by showing estimated arrival times for all participating fleets.

Communication is key. Designate one player as the coordinator who sets the arrival time and creates the ACS group. All other players adjust their fleet speed to match. A well-coordinated ACS attack is devastating; a poorly timed one wastes everyone's resources.

ACS Requirements

To participate in ACS operations, players must meet these requirements:

Alliance membership: both players must be in the same alliance, OR have each other on their buddy list.
Fleet slots: each participant needs an available fleet slot to send their fleet.
Computer Technology: your maximum fleet slots depend on your Computer Technology level. Ensure you have enough slots for ACS plus your other fleet operations.
No friendly fire: you cannot ACS attack an alliance member or buddy. ACS Attack targets must be non-allied players.

When to Use ACS

ACS Attack: Taking Down Giants

Use ACS Attack when facing a heavily defended target that no single alliance member can defeat alone. Pool your fleets to overwhelm the defender's ships and defenses. This is especially effective against turtle players who invest heavily in defense — their shield domes and ion cannons crumble when hit by a combined fleet of Battleships and Destroyers from multiple players.

ACS Defend: Protecting Allies

Use ACS Defend when an alliance member is under attack or expects to be attacked. Station your fleet on their planet to bolster their defense. This is a deterrent: attackers will spy the planet, see a massive combined fleet, and often decide not to attack at all. ACS Defend is also used during alliance wars to create fortified positions.

Advanced ACS Tactics

Experienced alliances develop sophisticated ACS strategies. A "hammer and anvil" approach stations a heavy defensive fleet (the anvil) on a bait planet while a strike fleet waits on standby. When the enemy attacks the bait, the anvil holds them in place while the hammer launches an ACS Attack on the enemy's now-undefended home planet.

Moon-based ACS operations are particularly powerful. Launch ACS Attacks from moons to prevent the defender from seeing your fleet composition via Phalanx. Coordinate the ACS timing so all fleets arrive simultaneously from different moons across the galaxy — the defender has no warning until multiple fleets appear on their radar at once.

Always bring recyclers in your ACS fleet. After a massive ACS battle, the debris field is enormous. Having recyclers ready means you can collect the debris before the defender does. Coordinate who brings recyclers to avoid duplication — one player focuses on recyclers while others bring maximum firepower.

Fuel cost splitting: in an ACS Attack, each player pays their own fuel. For targets far from most players, it may be more efficient for the closest member to send the bulk of the recyclers while distant members focus on combat ships, minimizing total alliance fuel expenditure.

ACS Tips

Communication Is Everything

ACS operations live or die by communication. Use alliance chat, set clear arrival times, designate a coordinator, and confirm every participant's status before launching. A single miscommunication can turn a devastating attack into a costly failure.

Match Fleet Speeds

When setting up an ACS Attack, agree on a fleet speed that all participants can match. The fastest fleet sets the pace — if one player's fleet is much slower, everyone else must slow down. Consider using similar ship types across participants for consistent speed.

Always Bring Recyclers

A successful ACS Attack produces massive debris. Coordinate who brings recyclers — ideally the player closest to the target. The debris from a large ACS battle can be worth millions of resources. Don't let it go to waste.

Frequently Asked Questions

No. ACS Attack targets must be non-allied players. You cannot attack someone in your alliance or on your buddy list using ACS. ACS Attack is offensive — it's meant for enemies, not allies.

Your fleet automatically fights as part of the defense. It is treated as if it were the planet owner's fleet for the purpose of combat calculations. If the defense wins, your fleet remains stationed. If the defense loses, your ships may be destroyed along with the planet's own fleet.

There is a maximum number of fleet slots per ACS group, typically 5 participants. This limit means you need to choose your participants carefully — pick the players with the strongest fleets for maximum impact.

Your fleet consumes Deuterium while stationed on another player's planet. The consumption rate depends on the ships in your fleet. Monitor your stationed fleet and recall it when it's no longer needed to avoid wasting Deuterium.

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