Endless Dungeonis a tough game. You’re faced with endless waves of enemies who push relentlessly towards your Crystal Bot and all you have to defend yourself are some guns and turrets. Things get even more complicated when you add complex boss fights into the mix, and Shelldiver may very well be the first boss you encounter.

Shelldiver is a massive enemy with a very large health bar, but it is not an insurmountable obstacle. With the right strategy and ample preparation, you should be able to take down this oversized Blob in no time at all.

Building Acid Sharpshooter turrets for the fight against Shelldiver

How To Reach Shelldiver

Shelldiver is the boss of theProcedural Factory, one of the three second-level floors you can access in Endless Dungeon.

After a pretty standard first zone, unlocking and entering the second zone of the area will place you in aunique room filled with turret spots. There will be one adjoining room that contains something helpful, such as a medkit dispenser or a merchant, but other than that, the only thing you can do here is prepare the obvious arena for the incoming fight.

Acid Sharpshooters firing at Shelldiver in Endless Dungeon

Shelldiver is aBlob-type enemy, and is thusweak to Acidattacks. When taking a route that pits you against this boss, it’s a great idea to pick up one or two Acid weapons for your squad and get suitable turrets.

TheAcid Sharpshooter and Amplifier turretsare perfect, especially if you can get the former levelled up at all.

Shelldiver’s targeting reticle in Endless Dungeon

YourCrystal Botwill be mobile and a target for enemy attacks for much of this fight, and you’ll need to move it out of large attack radiuses throughout the battle. Try toavoid any Crystal Bot upgrades that give it a decreased movement speedand consider those that make it quicker.

Hopefully, you’ll have saved up enoughIndustry pointsto set up a fair few Acid turrets around the arena. Your default neutral turrets would also be helpful, just not as much. Find one slot for an Amplifier, and you’re ready to start the fight by directing your Crystal Bot to the door to the elevator.

The Crystal Bot attacking Shelldiver in Endless Dungeon

Shelldiver First Phase

The first phase against Shelldiver is the easiest to deal with. The boss really only has one attack - it willmark a large, circular area for an attack, which will be visible to you. After a few seconds, Shelldiver will jump into the air andcrash into the marked area.

As soon as Shelldiver marks a circle for attack, get out of the area quickly, making sure that you take the route closest to the edge so that theCrystal Bot gets out of the circlequickly.

Falling rocks attack in Shelldiver’s fight in Endless Dungeon

This crash attack willdestroy any turrets it hits. You’ll need to keep repairing these throughout the fight, so any high-Wit characters will be useful here.

The enemyBlob spawnersaround the room will pump out weak enemies throughout this phase in small amounts. Take them down then they get too close to you.

The pools of electricity in the final phase of Shelldiver’s fight in Endless Dungeon

While avoiding Shelldiver’s attacks, make sure you’re also firing at it. You’ll notice thatShelldiver has two health bars- the first is a red health bar that gets drained when the boss is attacked by your characters and your turrets.

Once this initial health bar is depleted, Shelldiver will fall over. Approach it and you’ll be able tocommand your Crystal Bot to start ‘mining’ it. This will take off a chunk of the yellow health bar underneath the red health bar.

While the Crystal Bot is attacking Shelldiver, theenemy spawnerswill get more aggressive, sending out nastier Blobs in higher numbers. Take this time to eliminate them while healing up your turrets.

Once you’ve depleted a third of Shelldiver’s yellow health, it will heal its red health bar and shake the Crystal Bot off, starting the second phase.

Shelldiver Second Phase

This phase is a lot like the first phase- Shelldiver will make leaping attacks at you, small enemies will spawn to cause confusion and attack turrets, and you’ll need to keep an eye on your Crystal Turret at all times.

What’s different here is that whenever Shelldiver makes its leaping attack, it will be followed byfalling rocks from the ceiling. These will fall in zones indicated by red circles, so you’ll need to react fast to these as they appear, keeping in mind that you’ll also need to get the Crystal Bot out of the way too.

Overall, though,your strategy should be the same as in the previous phase. Fire at Shelldiver constantly, only pausing torepair turrets- especially your Amplifier turret, if you have one.

Repeat the mining process once you’ve depleted the boss’s red health bar again, and you’ll enter the third phase.

Shelldiver Third Phase

As with the transition between the first and second phases, the third phase is only slightly different to the previous phase. In this phase, Shelldiver still only has one attack, but in addition to being followed up with falling rocks, Shelldiver will also placepools of electricityin its landing zones. These will persist long after the impact and causeconstant damage to any character caught in them.

The damage is very light, so you’re able to dash in to repair turrets caught in the zone! Just make sure you get out before you take too much damage or the Crystal Bot manages to follow you inside.

Time is of the essence in this phase. You’ll need to repeat all the same steps as before, but playhyper-aggressively. Avoid the attacks as best you may and be ready to finish off the last of Shelldiver’s yellow health with the Crystal Bot as soon as the opportunity arises.

Once the last chunk of yellow health has been depleted, the fight is over and you can pick up your reward.