Abyssus Achievements & Challenges
Look up 119 Abyssus achievements and Logbook challenges, with requirements, unlock rewards, mastery guides and a Scribe collection checklist.
Plan a targeted attempt
Brine Field Mastery
Grow one field to the required diameter while keeping the run safe enough to collect area scaling.
Agnostic
Finish an expedition with zero Blessings while keeping your damage and survival in weapons, Charms, Forge upgrades and permanent progression.
Fishing Season
Create a temporary high-fire-rate window while the Harpoon Gun is equipped to unlock Ricocheting Harpoons.
Frag Grenade Mastery
Stock enough charges and cast them in a short burst to unlock Frag Grenade’s unique Forge options.
Turret Mastery
Deploy six Turrets before the first one expires.
Ancient Core Mastery
Land one sufficiently strong Core hit rather than accumulating damage across repeated casts.
Anchor Mastery
Group and weaken four enemies, then kill them with one Anchor swing.
Smiting Spear Mastery
Overlap planted spears and trigger their pulses during the three-second window.
Scribe: 260-entry collection checklist → · Surge Fissure locations and checklist →
All requirements and rewards
| Challenge | Requirement | Reward |
|---|---|---|
| Big Game Hunter | Defeat your first Elite. | Soul Fragments (5) Soul Fragments |
| Declassified | Defeat the Boss of the Submarine. | Soul Fragments (5) Soul Fragments |
| Royalty | Defeat the Boss of the Abandoned Temple. | Soul Fragments (5) Soul Fragments |
| Legend No More | Defeat the Boss of the Gardens. | Soul Fragments (5) Soul Fragments |
| Twisted | Defeat the Boss of the Sanctuary. | Soul Fragments (5) Soul Fragments |
| A Kingdom Toppled | Defeat the Final Boss! | Soul Fragments (5) Soul Fragments |
| First of Many | Fail an Expedition for the first time. | Revenant Charm |
| The First Herald | Defeat the First Elite in the Royal Abyss. | Diver Cosmetics |
| The Second Herald | Defeat the Second Elite in the Royal Abyss. | Explorer Cosmetics |
| The Third Herald | Defeat the Third Elite in the Royal Abyss. | Replacement Cosmetics |
| Killing Spree | Kill 1000 enemies. | Traditional Cosmetics |
| Timely Hero | Break 1000 pots! | Golden Cosmetics |
| Wealthy | Have 1000 Gold on you. | Gold Lure Charm |
| Meat Shield | Take 5000 damage. | Bandage Charm |
| Locksmith | Use 5 keys in one Expedition. | Skeleton Key Charm |
| Heads or Tails? Wrong. | Gain no reward 3 times from the same wishing well. | Lucky Charm Charm |
| Thick-skinned | Have more than 1000 maximum Health. | Healthy Commitment Charm |
| It's a Blast | Deal 500 000 damage using explosions. | Mr. Boom Charm |
| No Need | Complete an Expedition without using the Syringe. | Hate Forged Charm |
| Unbeatable | Kill an Elite using a Melee attack. | Slow Power Charm |
| Squint | Kill 30 enemies beyond 40 meters away. | Hawkeye Charm |
| Exterminate | Deal 9999 damage in a single hit. | Overkill Charm |
| Speedster | Finish an expedition in 30 minutes or less. | Power From Pain Charm |
| Torment | Deal 100 000 damage with damage over time effect. | Hex Charm |
| Lightbringer | Light up the hidden brazier. | Ms. Boom Charm |
| Agnostic | Complete an Expedition without any Blessings. | Aztec Cosmetics |
| Redo | Complete an Expedition on Deep Water Level 1. | Favored Foe Charm |
| Seasoned | Complete an Expedition on Deep Water Level 5. | Astronaut Cosmetics |
| Expert | Complete an Expedition on Deep Water Level 10. | Gas Mask Cosmetics |
| Master of the Abyss | Complete an Expedition on Deep Water Level 30. | Military Cosmetics |
| Masochist | Complete an expedition with at least one point in every difficulty of the Deep Water Tank. | Expedition Cosmetics |
| Gun Meets Crown | Complete an Expedition with the Engine Rifle. | Burst Fire Weapon |
| Drumfire | Kill 30 enemies with explosions while using the Engine Rifle. | Split Shot Weapon |
| Eco Warfare | Kill 10 enemies without reloading with the Engine Rifle. | Gatling Fire Weapon |
| Deadline | Get 3 kills while the Engine Rifle is overheated. | Concentrated Shot Weapon |
| Up Close & Personal | Complete an Expedition with the Shotgun. | Superheavy Slug Weapon |
| Triple Kill! | Get a triple kill with the shotgun. | Full-Automatic Weapon |
| Ricky's Creed | Kill 30 enemies with melee attacks while using the Shotgun. | Unload Weapon |
| Boomstick | Travel a total distance of 1000 meters with the buckshot's knockback. | Pressure Shot Weapon |
| Disco Fever! | Complete an Expedition with the Disc Thrower. | Fan Fire Weapon |
| Inferno | Hit 5 enemies with a single flame burst while using the Disc Thrower. | Dynamo Weapon |
| Dr. Discstein | Kill 50 enemies with Lightning while having the Disc Thrower equipped. | Electron Conductors Weapon |
| Flying Power Disc | Hit enemies 50 times within 5 seconds with the Disc Thrower. | Search And Destroy Weapon |
| Plasmaster | Complete an Expedition with the Plasma Launcher. | Adhesive Compound Weapon |
| Kaboom! | Kill 30 enemies with a Weakspot hit with the Plasma Launcher. | Flak Cannon Weapon |
| Boom! | Hit 3 enemies with a single Plasma Launcher explosion. | Seekers Weapon |
| Shot, Chaser | Kill 3 enemies at the same time with Seeker projectiles. | Void Infusion Weapon |
| Caged No More | Complete an Expedition with the Tesla Gun. | Unstable Coil Weapon |
| Wildfire | Apply 100 damage over time effects with the Tesla Gun. | Charge Beam Weapon |
| Battery | Hit enemies 100 times with a single spark orb. | Charge Orb Weapon |
| Electrifying! | Deal damage to 6 enemies at the same time while using the Tesla Gun. | Magnetic Storm Weapon |
| Robin Hood | Complete an Expedition with the Combat Bow. | Pierce Weapon |
| Three for One | Kill 3 enemies with a single pierce arrow while using the Combat Bow. | Exploding Arrow Weapon |
| Bottomless Quiver | Have 20 arrows in a row hit a target while using the Combat Bow. | Return Arrow Weapon |
| X Marks the Spot | Hit 200 Weakspots with the Combat Bow. | Smart Arrow Weapon |
| Good, Bad and Ugly | Complete an Expedition with the Brine Revolver. | Large Caliber Weapon |
| Town Ain't Big Enough | Kill 3 Bosses with a Weakspot hit while scoped with the Brine Revolver. | Quick Scope Weapon |
| Sharpshooter | Deal 500 overkill damage in a single shot with the Brine Revolver. | Charge Scope Weapon |
| High Noon | Kill 5 enemies without leaving scoped mode with the Brine Revolver. | Burst Fire Weapon |
| Slaying a White Whale | Complete an expedition with the Harpoon Gun. | Pinning Harpoons Weapon |
| Fishing Season | Gain a fire rate of 200% while using the Harpoon Gun. | Ricocheting Harpoons Weapon |
| C-C-C-COMBO | Spend 8 Combo Points within 2 seconds. | Binding Harpoons Weapon |
| Hook, Line and Skewer | Gain a weakspot hit on 3 enemies by piercing them with a single harpoon. | Brine-Powered Harpoons Weapon |
| Go Fish! | Complete an Expedition with the Fish Deity. | Wide Stab Weapon |
| Hooked | Kill an Elite in less than 20 seconds while using the Fish Deity. | Chainsaw Weapon |
| Open Wide | Hit 5 enemies with a single stab while using the Fish Deity. | Hazardous Goo Weapon |
| Free Throw | Kill 5 enemies 40 meters away with Fish Deity projectiles. | Fish Spit Weapon |
| Lobby Fissures | Destroy the Surge Fissures. | Tinker Cosmetics |
| Abandoned Temple Fissures | Destroy the Surge Fissures. | Sturdy Cosmetics |
| Submarine Fissures | Destroy the Surge Fissures. | Brine Cosmetics |
| Gardens Fissures | Destroy the Surge Fissures. | Vines Cosmetics |
| Sanctuary Fissures | Destroy the Surge Fissures. | Deep Cosmetics |
| Royal Abyss Fissures | Destroy the Surge Fissures. | Heavenly Cosmetics |
| The Bursting Weapon | Find the bursting weapon by defeating the Elite in the Abandoned Temple. | Shotgun Weapon |
| The Sharp Weapon | Find the sharp weapon by destroying the hidden crystals. | Disc Thrower Weapon |
| The Precise Weapon | Find the precise weapon by quickly defeating the Elite in the Sanctuary. | Combat Bow Weapon |
| The Aquatic Weapon | Find the aquatic weapon by solving the mystery of the secret pond. | Fish Deity Weapon |
| The Scoped Weapon | Find the scoped weapon in the Lobby. | Brine Revolver Weapon |
| The Blazing Weapon | Find the blazing weapon by quickly reaching the Royal Abyss. | Plasma Launcher Weapon |
| The Electrical Weapon | Find the electrical weapon by defeating the Elite in the Gardens. | Tesla Gun Weapon |
| The Skewering Weapon | Find the skewering weapon by defeating the Boss of the Abandoned Temple a second time. | Harpoon Gun Weapon |
| The Ancient Ability | Find the Ancient Ability by collecting 3 artifacts. The acquisition page instead lists 6 artefacts. See the source conflict note before using a numerical threshold. | Ancient Core Ability |
| The Protective Ability | Find the protective Ability by ascending the pillars. | Brine Field Ability |
| The Mighty Ability | Find the mighty Ability by unlocking the Treasury. | Anchor Ability |
| The Autonomous Ability | Find the autonomous Ability by defeating the Boss of the Abandoned Temple. | Turret Ability |
| The Herald-slaying Ability | Find the herald-slaying ability by defeating the Boss of the Gardens a second time. | Smiting Spear Ability |
| Frag Grenade Mastery | Use the Frag Grenade 8 times within 5 Seconds. | Frag Grenade Mods Ability |
| Turret Mastery | Have 6 Turrets active. | Turret Mods Ability |
| Brine Field Mastery | Gain a Brine Field with a diameter of 40 meters. | Brine Field Mods Ability |
| Ancient Core Mastery | Deal 2000 damage with a single hit of the Ancient Core. | Ancient Core Mods Ability |
| Anchor Mastery | Kill 4 enemies with a single Anchor swing. | Anchor Forge Mods Ability |
| Weapon Mastery | Complete an Expedition with every weapon. | Tall Neck Cosmetics |
| Engine Rifle Connoisseur | Unlock all primary and secondary mods for the Engine Rifle. | Golden Cosmetics |
| Shotgun Connoisseur | Unlock all primary and secondary mods for the Shotgun. | Golden Cosmetics |
| Tesla Gun Connoisseur | Unlock all primary and secondary mods for the Tesla Gun. | Golden Cosmetics |
| Disc Thrower Connoisseur | Unlock all primary and secondary mods for the Disc Thrower. | Golden Cosmetics |
| Plasma Launcher Connoisseur | Unlock all primary and secondary mods for the Plasma Launcher. | Golden Cosmetics |
| Fish Deity Connoisseur | Unlock all primary and secondary mods for the Fish Deity. | Golden Cosmetics |
| Brine Revolver Connoisseur | Unlock all primary and secondary mods for the Brine Revolver. | Golden Cosmetics |
| Combat Bow Connoisseur | Unlock all Primary and Secondary mods for the Combat Bow. | Golden Cosmetics |
| Harpoon Gun Connoisseur | Unlock all Primary and Secondary mods for the Harpoon Gun. | Golden Cosmetics |
| Collector | Unlock all Weapons and Abilities. | Metal Cosmetics |
| Cabinet of Curiosities | Unlock all artifacts in the Lobby. | Sky Cosmetics |
| Proficient | Unlock all skills. | Pristine Cosmetics |
| Scribe | Unlock all the Logbook entries for all Blessings and Charms. | Ancient Cosmetics |
| Challenger Approaching | Defeat every Boss Variant. | Expedition Cosmetics |
| Pathfinder | Complete an expedition in Twisting Chasm. | Vanguard Cosmetics |
| Spelunker | Complete an expedition after 2 full loops in Bottomless Chasm. | Vanguard Cosmetics |
| Trailblazer | Complete an expedition in Twisting Chasm and with 3 full loops in Bottomless Chasm. | Trailblazer Cosmetics |
| Reeling It In! | Defeat the Boss of the Gardens by using the Fish Deity's Discharging Reload. | Fisherman's Birdcage Cosmetics |
| Smiting Spear Mastery | Have Smiting Spears pulse 15 times within 3 seconds. | Smiting Spear Mods Ability |
| Primary, check! | Fill every Blessing slot on the Primary Fire. | Assault Cosmetics |
| Secondary, check! | Fill every Blessing slot on the Secondary Fire. | Sniper Cosmetics |
| Ability, check! | Fill every Blessing slot on the Ability. | Mortarman Cosmetics |
| Forge, check! | Fill every Ancient Forge slot for the Weapon and Ability. | Sledger Cosmetics |
| Meltdown Contained | Destroy each of the Elite Engine's Brine Vessels within 5 seconds of each other. | Soul Fragments (5) Soul Fragments |
| Armor Breaker | Deal 10,000 damage to enemy Armor. | Soul Fragments (5) Soul Fragments |
| Cartographer | Complete every area in the same run by using Bottomless Chasm. | Soul Fragments (5) Soul Fragments |
| The New Monarch | Complete all Challenges. | Admiral Cosmetics |
The official Steam roster confirms 119 achievement names. Requirements and rewards are sourced from the Logbook challenge table; platform labels can differ. These routes are editorial suggestions and do not guarantee a drop or completion.