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Abyssus

Abyssus cover art
Developer
DoubleMoose Games
Publisher
The Arcade Crew, Dotemu
Released
Aug 12, 2025
Steam reviews
85% of players recommend it, from 5,805 reviews — Steam calls that “Very Positive”
Tags
ActionAdventureIndie
View on Steam

On Linux, Steam Deck and Steam Machine

Proton: PlatinumDeck PlayableSteam Machine: PlayableSteamOS Compatible

This game runs perfectly out of the box under Proton, per ProtonDB reports (16 reports). Valve rates it Playable on Steam Deck.

Valve rates it Playable on Steam Machine. Valve marks it SteamOS Compatible.

Proton tier: ProtonDB · Deck rating: Valve · Steam Machine, Steam Frame and SteamOS ratings: Valve · Compare 2,053 games · Every game Valve rated for Steam Machine

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About this game

The developer's description, from the game's Steam store page.

Gather your friends and dive into Abyssus' fast-paced multiplayer shooting action. Fight through gorgeous hand-crafted levels in a roguelite adventure that will put your tactical skills to the ultimate test. Wield powerful brine-powered weapons and refit them with ancient technologies to gain an edge over your foes. Obtain divine blessings to enhance your firepower with elemental and mystic effects.

In a world powered by brine, a rare and powerful substance only found in the deepest fathoms of the sea, your team of daring brinepunk explorers is recruited to claim a massive deposit located beneath the ruins of an ancient civilization. However, your mission becomes a frantic battle for survival when the sunken kingdom’s corrupted inhabitants rise against you.

Will you survive to see the surface again, or will the abyss claim your life?

In Abyssus, cooperation means survival. Team up with fellow Brinehunters and carefully choose synergic loadouts, skills, suits, and weapon mods. Work together and fight through a merciless roguelite gauntlet, where no run is the same as the last.

Wield highly customizable, brine-powered armaments and infuse them with the might of ancient Gods. Master 8 weapons and 45 weapon mods, upgrading your skills and suit as you face the underwater kingdom’s mutated guardians.

Run after run, you’ll access more and more upgrades and tactical choices, but firepower alone won’t save you from the denizens of the depths. Mastering Abyssus's visceral gunplay and fast-paced action will require tactical coordination, positioning skills, and cohesive teamwork.

The world of Abyssus is richly atmospheric and steeped in mystery. What untold secrets lie in the sunken kingdom? What gives brine its inexplicable powers? Can we weaponize an anglerfish? The answers lie deep down below…

  • Visceral, fast-paced FPS action, with top-notch weapon feel and combat responsiveness
  • Up to 4-players co-op
  • Roguelite meta progression with advancements, rewards, and unlocks
  • 70+ hand-crafted levels, procedurally sequenced to make every run a new experience
  • 9 different weapons customizable with 45 weapon mods
  • Over 140 Ancient Forge mods to further empower weapons and skills
  • Extensive pre-run and in-run character customization options
  • 36 different enemies and 12 bosses that will put your skills to the challenge
  • Over 250 Charms and Blessings to craft the perfect build

System requirements

As Steam lists them.

Windows

Minimum

Requires a 64-bit processor and operating system
OS
Windows 10
Processor
Intel Core i7-8700K or AMD Ryzen 5 1600X
Memory
8 GB RAM
Graphics
NVIDIA GeForce GTX 750 Ti, 2GB or AMD Radeon R7 360, 2GB
DirectX
Version 11
Storage
10 GB available space
Additional Notes
Low 1080p @ 30 FPS

Recommended

Requires a 64-bit processor and operating system
OS
Windows 11
Processor
Intel Core i7-11700K or AMD Ryzen 7 3700X
Memory
8 GB RAM
Graphics
NVIDIA GeForce GTX 1650 SUPER, 4GB or AMD Radeon RX 5600, 6GB
DirectX
Version 11
Storage
10 GB available space
Additional Notes
High 1080p @ 60 FPS

Downloadable content

Steam lists 5 items of downloadable content for this game.

News

What Abyssus's studio and the outlets Valve syndicates on Steam have said recently.

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