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Developed by R&D to support solo miners with mining, lighting, and fighting. The APD is not meant as a true replacement of a co-worker, but it is known to be a bit more reliable. The APD is popularly referred to as 'Bosco', but Management strongly disapproves of the use of nicknames for equipment. Personification is known to cause depression among workers in the event of malfunctioning equipment.
— Item Description

When starting a multiplayer match by yourself, or playing in Solo Mode, players are accompanied by a hovering All Purpose drone nicknamed Bosco. Bosco can be directed using the [SHOUT] button and the Laser Pointer. He can mine for minerals, fight off enemies, revive you when you're down, and helpfully light up locations using his spotlight.

In Solo Mode, Bosco will remain with you for the entirety of the mission, but only appears when you are alone in a multiplayer match, immediately self destructing on the entry of another player into your game. However, if all players but the host leave the game, Bosco will re-spawn.

Pressing the [SHOUT] button ("X" by default) will make Bosco abandon his current task and come to your location.


Icon Bosco Mine.png Mining

Bosco can be directed to mine out minerals and tunnel through compacted dirt. He can't be used to mine through common/solid rock unless you mark a wall with a large resource in it, where he will stop excavating the stone as soon as the resource is freed. Bosco must be manually ordered to mine deposits with the Laser Pointer; he won't automatically mine out anything by himself. When in mining mode, Bosco will ignore enemies. Equipping the Mining Expert modification greatly increases the speed that Bosco mines through ores, dirt, and terrain.

Gold and Morkite mined by Bosco are not affected by the Pots O' Gold or Dark Morkite beers, as their respective boosts to Gold and Morkite acquisition only apply when using the pickaxe to mine.

Bosco can be directed to dig out and deliver large resources such as Aquarq, Jadiz, Alien Eggs or mini-M.U.L.E. legs - anything you can carry, Bosco can carry too. When directed to mine out a large object, he will emit a sound upon uncovering it, then automatically pick it up and start slowly moving towards you. If Bosco is within 10 meters and has line of sight to you while holding an object, pressing the [SHOUT] button will direct him to throw it to you. Otherwise, he will simply drop it. In any case, you can catch the object with the default [Interact] button (E).
Bosco cannot deposit large minerals on his own; you'll have to pick up whatever he's carrying and deposit it in the M.U.L.E., Mine Head, or Drop Pod yourself. He also cannot pick up small ore chunks, brewing ingredients, or secondary objective resources (with the exception of Gunk Seeds, which Bosco can pick up and carry, but only after they've been freed from their sacs).

During Escort Duty missions, Bosco can be directed to mine the tips of Ommoran Beamers off, ceasing their energy beams.

When directed to mine, a blue pickaxe will appear above Bosco for a few seconds. His spotlight will also turn blue.

Icon Bosco Fight.png Combat

Bosco's HUD.

Close Range Combat

Bosco is armed with a pair of submachine gun-type automatic weapons for close-range combat, and will automatically use them to engage threats he encounters, provided the threat is within a certain range of both Bosco and the Player. Bosco can use them to quickly kill off smaller Glyphids, leaving the player free to engage larger threats. If a Cave Leech, Nayaka Trawler or Mactera Grabber ensnares you, Bosco can assist in rescuing you. You can have Bosco prioritize rescuing you by calling for him using the [SHOUT] button.

When engaging an enemy (either by your command or under his own initiative), Bosco will display a hologram of a fist over his chassis/head, and his spotlight will turn red. To direct Bosco to attack a specific enemy, highlight them with the Laser Pointer. Bosco will not automatically engage passive or friendly creatures unless directed to via the Laser Pointer. Additionally, Bosco will only engage any parts of the Korlok Tyrant-Weed after the battle is activated.


After the Rockets modification has been purchased and equipped, Bosco will gain the ability to fire explosive missiles. Rockets are fired by clicking the right mouse button when using a keyboard and mouse or pressing the Left trigger on an Xbox One controller while holding the Laser Pointer. Bosco will fire a rocket at the creature or space you marked, although terrain obstacles in the direct path between Bosco and the designated target might be hit instead. Rockets will automatically regenerate over time, similar to Flares.

Like any other explosive, they can destroy terrain. This gives them a potential, if unconventional, use for destroying terrain in hard-to-reach areas if necessary, such as freeing resource chunks that Bosco has mined, disabling laser pillars of the Ommoran Hearthstone (if aimed at the tip) or removing the hazardous effect of Volatile Uranium (if aimed at the center).

Icon Bosco Revive.png Reviving

When the Player is incapacitated, Bosco can rescue the player by reviving them. Bosco will let out an electrical shock before reviving the player, which scares away any surrounding enemies. While Bosco will attempt to revive you automatically, you may want to call him over using the [SHOUT] button.

A display on the back of Bosco's chassis indicates how many revive charges he has left. The amount of charges is also displayed on the HUD, and can be increased using modifications. If the player is downed when Bosco is out of charges, the mission will fail.

Icon Bosco Light.png Light

When aiming at a location that isn't a mineable resource, dirt, or an enemy, using the Laser Pointer will direct Bosco to fly over to the target location and shine his spotlight on whatever you're aiming at for up to 20 seconds or until ordered otherwise.

Icon Bosco Repair.png Repair

Exclusive to On-site Refining missions. When selecting the buildable node of a pipeline, Bosco will start constructing the pipeline until it is finished, or he will repair if it is leaking (it can be cancelled if the player makes a new order, or press the [SHOUT] button).

Note that Bosco cannot lay the pipeline frameworks - solving the pathing puzzle is entirely on you. Another thing to keep in mind when pinging pipes is that your marker must be close to the section that requires attention.

Icon Bosco Guard.png Guard

Prior to Rival Incursion, Guard was exclusive to Escort Duty missions.

When selecting either the Drilldozer or Hack-C, Bosco will focus on defending (it can be cancelled if the player makes a new order, or press the [SHOUT] button). This means that Bosco stops following the player and stays in the vicinity of the drilldozer or Hack-C until ordered otherwise; this includes after retrieving the heartstone.

Icon Bosco Vacuum.png Vacuum

Exclusive to the Lithophage Outbreak warning. When selecting infected area around a Contagious Spike, Bosco will start vacuuming any foamed area (it can be cancelled if the player makes a new order, or press the [SHOUT] button). The drone does not need to hold a LithoVac for this, as this functionality seems to be built in.

Note that Bosco cannot apply foam - the application it is entirely on you.


Since Update 20: Bigger, Better, Bosco, Bosco can be customized using modifications. Modifications can be purchased and equipped using a special terminal in the Space Rig.

Unlike other modifications, player rank is used instead of character level.

Initial Stats
Light Radius 10m
Max Revives 2
Mining expert +0%
Main Attack Stats
Damage 4 Typeless
Rate of Fire
(per second)
Burst Size 5-12
Burst Cooldown 0.4-1s
Rocket Stats
Area Damage 120 Explosive
Maximum Damage Radius 1.5m
Radius 2.5m
Minimum Damage 25%
Friendly Fire 10%
APD-B317 Modifications
Mod Description Effect Price
Tier 1 Icon Upgrade DamageGeneral.png
High Velocity Rounds
+2 Damage The primary damage of the weapon is increased.
Credit.png 400 Credits
Icon Upgrade PlusOne.png
Extra Revive
+1 Revive One extra revive kit to bring back to action an incapacitated dwarf.
Credit.png 400 Credits
Icon Upgrade Digging.png
Mining Expert
+100% Mining Expert (Mining speed) Improves Bosco's capabilities to mine minerals, dirt, or any kind of terrain.
Credit.png 400 Credits
Tier 2
Rank 2
Icon Upgrade Special.png
+2 Rocket Attacks
+120 Rocket Area Damage
+2.5m Rocket Damage Radius
Rocket Regeneration Time: 90s
A secondary weapon that can shoot explosive rockets. Bosco's AI is not ready to handle this kind of weaponry, use the Laser Pointer for manual activation.
Credit.png 1200 Credits
Enor Pearl 20 Enor Pearl
Tier 3
Rank 3
Icon Upgrade Light.png
Let There Be Light
+20m Light Radius A significant lumens increase that can make the difference in some of the darkest caves.
Credit.png 1000 Credits
Umanite 10 Umanite
Icon Upgrade PlusOne.png
Extra Revive
+1 Revives One extra revive kit to bring back to action an incapacitated dwarf.
Credit.png 1000 Credits
Bismor 10 Bismor
Icon Upgrade Ammo.png
Extra Rocket
+1 Rocket Attacks Increases the total amount of rockets Bosco can fire before regenerating.
Credit.png 1000 Credits
Magnite 10 Magnite
Tier 4
Rank 4
Icon Upgrade ScareEnemies.png
Fear The Rocket
+50% Rocket Fear Factor There is a chance to scare enemies away from the explosion of the rockets.
Credit.png 1800 Credits
Umanite 30 Umanite
Icon Upgrade ArmorBreaking.png
High Frequency Explosion
+600% Rocket Armor Breaking Higher chance for the rocket explosion to shatter armor.
Credit.png 1800 Credits
Jadiz 30 Jadiz
Icon Upgrade Cold.png
Cryo Explosion
100 Cold Damage (Explosive Damage is removed)
+1m Rocket Effect Radius
Maximum Damage Radius: 3m
Adds cryogenic liquid to the explosion of the rocket. Cold slows down enemies and can eventually freeze them. The explosion deals almost no damage, but the area of effect increases.
Credit.png 1800 Credits
Enor Pearl 30 Enor Pearl
Tier 5
Rank 5
Icon Upgrade Area.png
Bigger Explosion
+2m Rocket Effect Radius Increased area of effect for the explosion of the rocket.
Credit.png 2200 Credits
Croppa 20 Croppa
Magnite 30 Magnite
Icon Upgrade ChargeUp.png
Fast Regeneration
-50s Rocket Regeneration Time It takes less time for the rockets to be ready to shoot again.
Credit.png 2200 Credits
Jadiz 20 Jadiz
Umanite 30 Umanite
Icon Upgrade Electricity.png
Overcharged Rounds
+30% Electrocution Chance Bullets coming out of the primary weapon have a chance to electrocute.
Credit.png 2200 Credits
Magnite 20 Magnite
Bismor 30 Bismor


Each modification that is purchased advances a mastery bar by one unit.

Mastery unlocks:

  • Three modifications – Abyssal Frost Bosco Paintjob Icon Skin APD Abyssal Frost.png
  • Five modifications – Corporate Mint Bosco Paintjob Icon Skin APD Corporate Mint.png
  • Seven modifications – War Veteran Bosco Framework Bosco WarVeteran.png
  • Nine modifications – Scorched Bosco Paintjob Icon Skin APD Scorched.png
  • Eleven modifications – Primal Blood Bosco Paintjob Icon Skin Primal Blood.png
  • All (13) modifications – Cyber Ninja Bosco Framework Bosco CyberNinja.png


Seasons Referencing: [1] [2]

Bosco has a small array of different Frameworks and Paintjobs that can be unlocked as progression rewards as more modifications are purchased. Also in DLC, Cargo Crate, or found in Lost Pack.

Framework Unlock
Bosco Default.pngIcon Skin Stock.png Company Standard Default Framework
Bosco CyberNinja.pngIcon Skin APD Cyber Ninja.png Cyber Ninja Obtained from APD-B317 Mod unlocks
Bosco WarVeteran.pngIcon Skin APD War Veteran.png War Veteran Obtained from APD-B317 Mod unlocks
Bosco YuletideBosco.pngIcon Skin APD Yuletide Bosco.png Yuletide Bosco Obtained from The Yuletide Elf Hunt (2022)
Bosco Barbaric.pngIcon Skin APD Barbaric.png Barbaric [2] Obtained from Cargo Crate
Bosco SurplusBarrel.pngIcon Skin APD Surplus Barrel.png Surplus Barrel [1] Obtained from Cargo Crate
Bosco BlisterBot.pngIcon Skin APD Blister Bot.png Blister Bot Obtained from the Performance Pass level 81
Paintjob Unlock
Icon Skin APD Abyssal Frost.png Abyssal Frost Obtained from APD-B317 Mod unlocks
Icon Skin APD Corporate Mint.png Corporate Mint Obtained from APD-B317 Mod unlocks
Icon Skin Primal Blood.png Primal Blood Obtained from APD-B317 Mod unlocks
Icon Skin APD Scorched.png Scorched Obtained from APD-B317 Mod unlocks
Icon Skin APD Icy.png Icy [2] Obtained from Lost Pack
Icon Skin Moss Crawler.png Moss Crawler [1] Obtained from Lost Pack
Icon Skin APD Plague Splatter.png Plague Splatter Obtained from the Performance Pass level 35
Icon Skin APD Dark Future.png Dark Future Obtained from the Dark Future DLC
Icon Skin APD Roughneck.png Roughneck Obtained from the Roughneck DLC
Icon Skin APD Dawn of the Dread.png Dawn of the Dread Obtained from the Dawn of the Dread DLC
Icon Skin APD Robot Rebellion.png Robot Rebellion Obtained from the Robot Rebellion DLC
Icon Skin APD Biohazard.png Biohazard Obtained from the Biohazard DLC
Icon Skin APD The Supporter.png The Supporter Obtained from the Supporter Upgrade DLC
File:Icon Skin APD GSG Guardian.png GSG Guardian Obtained from the Supporter II Upgrade DLC

The Cyber Ninja and War Veteran framework were added in Update 26, then a plethora of different paintjobs were added in the 2020 Anniversary Update as additional progression rewards, along with a Supporter Upgrade DLC exclusive gilded paintjob.



  • According to the item description, Deep Rock Galactic Corporation advises against the personification of robots because of decreased morale in the event of a malfunction.
  • Pressing the [Salute] button ("V" by default) will make Bosco return it with a salute of his own and a robotic bark.

See also

  1. 1.0 1.1 1.2 From Season 01: Rival Incursion Performance Pass.
  2. 2.0 2.1 2.2 From Season 02: Rival Escalation Performance Pass.