If you’ve spent any amount of time playing Endless Space 2, you’ve almost certainly had that cold sweat moment when a massive enemy ark pops up on your border scanner. These mobile behemoths can wipe out unprotected fleets in one turn, and they’re often the first sign that a dominant AI faction is about to roll through your entire empire if you don’t act fast. Today we’re breaking down exactly how to kill arks in Endless Space 2, with tested strategies that work for every faction, even if you’re playing on hard difficulty.
How to Kill Arks in Endless Space 2: First Understand What You’re Up Against
Before you even start building ships to take on an ark, you need to know its core strengths and weaknesses. Most arks you’ll face belong to the Vodyani faction, since arks are their primary population hubs and mobile bases, though Craver factions can also field modified arks as heavy assault units late in the game. All arks share core stats that make them so dangerous to new players.
First, they have base armor of 70+ and resistance to most energy and missile damage types, which means the default mixed loadouts most new players use for their fleets will barely scratch their hull. They also have three long-range kinetic battery slots that can fire on your ships before you get within your own standard attack range, so smaller ships like frigates and destroyers will get wiped before they can do any damage.
Arks never travel alone, either. You’ll almost always see them accompanied by 2-3 squadrons of screening cruisers and destroyers, plus defensive drone swarms that take out incoming missiles before they hit the ark’s hull. That means you can’t just rush the ark directly – you have to plan for the full fleet around it too. I made that mistake my first time facing a Vodyani ark, sent 6 cruisers straight for the ark, and lost every single one before they even got within firing range.
Optimal Fleet Loadouts for Taking Down Arks
The biggest mistake players make when preparing to fight an ark is wasting resources on small, fast ships that can’t survive the ark’s long-range fire. You need a focused, heavy fleet built specifically to counter the ark’s strengths, and you don’t need more than 8-10 total ships to pull off a win if your loadouts are correct. Here’s the exact fleet composition I use for every ark fight:
- 3+ Battleships with 100% kinetic weapon loadouts: Arks have weak kinetic resistance compared to energy or missile defense, so focused kinetic volleys will chew through their armor 3x faster than mixed loadouts. Skip energy weapons entirely for these ships, and use all available weapon slots for heavy kinetic cannons.
- 2 screening cruiser squads with point defense systems: These will take out the ark's defensive drone swarms and incoming missile barrages before they hit your main battleship line. Fit them with medium kinetic weapons too, so they can help take out the ark’s support cruisers while they handle defense.
- 1 support cruiser squadron with combat buff modules: Modules like weapon range boosts and armor penetration auras will cut your required fight time by nearly 40% in most cases. The extra range also lets your battleships start firing on the ark at the same time it starts firing on you, eliminating its biggest advantage.
Don’t waste module slots on faster engines for your main battleships, either. You only need enough speed to keep pace with your screening ships, and extra engine slots are better used for additional armor or shield modules to keep your battleships alive longer. You also need at least tier 3 kinetic weapon tech unlocked before you engage an ark. I tried taking one on with tier 2 kinetic weapons once, and didn’t even get through 25% of the ark’s health before I had to retreat to avoid losing my entire fleet.
If you’re playing as the United Empire, you can use their production bonus to crank out these battleships 20% faster than other factions, so you can engage arks 10-15 turns earlier than you would with a different faction. Lumeris players can also buy pre-built battleships from minor factions if you have extra dust saved up, skipping the production wait entirely.
Pre-Fight Diplomacy and Positioning Tricks That Cut Risk
You don’t have to take on the ark alone, and you don’t have to fight it on the enemy’s terms. A little bit of pre-fight prep can cut your losses by half, and even let you take on arks when you’re slightly underpowered.
First, never engage an ark in a system controlled by the enemy faction. Their starbase defenses will add extra fire support to the ark, and you’ll take double damage before you even get close to the fight. Instead, try to lure the ark into a neutral system or a system you control with a max-tier starbase of your own. Your starbase will add extra long-range fire support, and you’ll have access to repair stations mid-fight to fix damaged ships between rounds.
Next, check your diplomacy screen before you declare war. Most AI factions hate the Vodyani because they leech resources from every system they pass through, so you can usually get 1-2 nearby factions to join your war against them for no cost. Their support fleets will help take out the ark’s screening ships, and you won’t have to waste your own ships on those fights. Just make sure you declare a formal war first instead of launching a surprise attack. Surprise attacks give you a permanent diplomacy penalty with all neutral factions, and other empires will refuse to ally with you for the rest of the game.
If you’re playing as the Lumeris, you can even pay minor factions near the ark to launch harassing attacks on the support fleet for a few turns before you engage. This usually cuts the support fleet size by 20-30%, and costs less than building an extra cruiser squadron would. I’ve used this trick to take on arks 20 turns earlier than I normally would be able to, and it saved me thousands of production resources I could use for colony upgrades instead.
Post-Fight Steps to Maximize Your Reward
Killing the ark isn’t the end of the process – you can get huge bonuses from the wreckage and the weakened enemy faction if you make the right moves after the fight.
First, if you have tier 2 salvage tech unlocked, leave a small cruiser squad in the system with the ark wreckage for 2-3 turns. You’ll get rare tier 4 ship modules that you can’t unlock through regular research for another 30+ turns, including extra powerful kinetic cannons and armor buffs that will make your future fleets even stronger. Don’t leave the wreckage unguarded, though – other factions will send their own salvage ships to steal the rewards if you don’t leave protection there.
If the ark belonged to the Vodyani, killing it will wipe out 30-50% of their total population, which means they’ll be severely weakened for at least 20 turns. You have two options here: you can push straight into their territory and take over their unprotected systems, or you can offer them a peace deal in exchange for a huge tribute. Most of the time, they’ll agree to give you all their luxury resources and 5000+ dust just to end the war, which is a huge boost for your empire’s economy.
If you killed a Craver ark, that will usually stop their expansion push for 15 turns, which gives you time to build up border defenses if you’re not ready to launch a counterattack. Cravers rely on their assault arks to break through fortified borders, so losing one will make them focus on weaker targets instead of your empire for a while.
You should also use the win as a diplomacy tool with other nearby factions. Most factions will gain respect for you if you take down an ark, and you can use that positive reputation to form trade alliances or defensive pacts that protect you from future threats.
At the end of the day, learning how to kill arks in Endless Space 2 is less about having the biggest fleet, and more about smart prep and using the game’s mechanics to your advantage. You don’t need to dump all your production into military ships for 10 turns just to take one down, and you don’t have to face it alone if you leverage alliances with other factions. I’ve used these exact strategies to beat arks on impossible difficulty, and they work for every faction in the game. Next time you see that big red ark marker pop up on your map, don’t panic – just run through the steps we covered, and you’ll come out on top.