- Games
- Abyssus
Abyssus
A fast first-person shooter for up to four, where each run takes your team deeper into monster-filled sunken ruins.
Online co-op for up to 4 players, with crossplay.
- 4 online
- Crossplay
Where to buy
Playing together
- Online co-op4 players
- Local co-opNoOnline only
- YesPC, PlayStation, XboxFriends on different platforms, such as PC and PlayStation, can play together.
- Not confirmedA friend can join or leave while you are already playing, without starting over.
- Not confirmedFriends play free with a Friend's Pass or similar.
- Steam DeckPlayableValve's own rating
About the game
You put on a deep-sea diving suit and go down into a sunken ruin, where the corrupted inhabitants attack. A run strings hand-built combat levels together in a new order and ends in boss fights. It lasts from about 20 minutes to over an hour. Movement is quick, with dashes and double jumps, so you keep moving while you shoot.
Up to four people play together online, and players on PC, PlayStation 5 and Xbox Series X|S can join each other. Before a run you choose a weapon and mods. During it you pick blessings that add fire, ice or lightning to your shots, and your team's picks can combine in useful ways. Some upgrades stay unlocked for the next run.
It suits friends who like fast shooting and trying a different build each time. You can play alone, but the game is made for a team.
How it feels
Kind of game
A team takes on missions or runs full of enemies. You pick gear, cover each other and pick each other up.
- At its heart
- Now and then
- Laughter and chaos
- Fear
- Story
- Time to hang out
- Exploring
- Jumping and climbing
- Sessions
- Repeatable runs
- About
- Underwater, Monsters
Rated on our own feel scale. 7 sources back these ratings.
Screenshots
From the Steam store page. Open one to see it full size.
If you liked Abyssus
You will probably enjoy these too. Each one says why.
Aliens: Fireteam Elite
Why it scores 91%
What they share
- Kind of game
- Squad shooter
- About
- Monsters
- Core to both
- Fighting
- Notable in both
- Working in sync, Tension and danger, Planning ahead, Getting better, Unlocks and progress
- Sessions
- Repeatable runs
- Co-op
- Online co-op
- 3 online
- Crossplay
Both send your squad into fights where you watch each other's backs. Both are about monsters that hunt you. Both have a lot of fighting side by side.
No big difference from Abyssus.
Warhammer 40,000: Darktide
Why it scores 90%
What they share
- Kind of game
- Squad shooter
- About
- Monsters
- Core to both
- Fighting
- Notable in both
- Working in sync, Tension and danger, Planning ahead, Getting better, Unlocks and progress
- Sessions
- Repeatable runs
- Co-op
- Online co-op for up to 4 players
- 4 online
- Crossplay
Both send your squad into fights where you watch each other's backs. Both play in runs or missions you repeat. Both are about monsters that hunt you.
No big difference from Abyssus.
Warhammer: End Times - Vermintide
Why it scores 89%
What they share
- Kind of game
- Squad shooter
- About
- Monsters
- Core to both
- Fighting
- Notable in both
- Working in sync, Tension and danger, Planning ahead, Getting better, Unlocks and progress
- Sessions
- Repeatable runs
- Co-op
- Online co-op for up to 4 players
- 4 online
Both send your squad into fights where you watch each other's backs. Both are about monsters that hunt you. Both have a lot of fighting side by side.
No big difference from Abyssus.
All co-op facts
Last checked 28 October 2026. The small numbers link to the page that states each fact.
Co-op
- Fewest players online
- Not confirmed
- Most players on one screen
- Does not apply
- Split or shared screen
- Does not apply
- Separate-device co-op
- Not confirmed
- Most players on separate devices
- Not confirmed
- Free base co-op
- No
The checked computer full base game requires purchase. Its paid base offer includes the supported co-op activity. Demo, trial, guest and subscription alternatives are separate.
- 2356
- Confirmed free setups
- Does not apply
- Friends can join mid-game
- Not confirmed
- Only one of you needs to buy it
- Not confirmed
- Voice chat by distance
- Not confirmed
Sources
18 pages
thearcadecrew.comOfficial site, read 28 October 2026
Backs Online co-op, Most players online, Platforms, Genres.
- Online co-op: The publisher calls it a cooperative FPS and roguelite.
- Most players online: The feature list says up to 4-players co-op.
- Platforms: The store buttons list Steam, PS5 and Xbox Series X. A banner still says the console versions are coming, which is out of date.
- Genres: Calls it a cooperative FPS and roguelite.
store.steampowered.comStore page, read 28 October 2026
Backs Online co-op, Most players online, Kind of game, Sessions, About, Working in sync, Planning ahead, Unlocks and progress, Fighting, Release status, Genres, Free base co-op.
- Online co-op: Key features list Online Co-op, and the text offers up to 4-players co-op.
- Most players online: The feature list says up to 4-players co-op.
- Kind of game: The text says cooperation means survival and asks the team to pick loadouts that work together.
- Sessions: The text calls it a roguelite where no run is the same as the last. User tags include Roguelike and Roguelite.
- About: The text has the corrupted inhabitants of a sunken kingdom rising against the team, with dozens of enemy types and 12 bosses. It also sends brine explorers down beneath the sea into that kingdom, and the user tags include Underwater and Submarine.
- Working in sync: The text says surviving takes tactical coordination, positioning and cohesive teamwork.
- Planning ahead: The text has the team choose loadouts, skills, suits and weapon mods.
- Unlocks and progress: The feature list includes meta progression with advancements, rewards and unlocks.
- Fighting: The text promises fast-paced first-person shooting, and user tags include FPS and Shooter.
- Release status: The page carries no Early Access badge.
- Genres: The text calls it an FPS and roguelite, and user tags include Roguelike and Action Roguelike.
- Free base co-op: The checked computer full base game requires purchase. Its paid base offer includes the supported co-op activity. Demo, trial, guest and subscription alternatives are separate.
store.steampowered.comStore data, read 28 October 2026
Backs Steam app ID, Online co-op, Platforms, Release status, Release date, Free base co-op.
- Online co-op: Categories include Co-op and Online Co-op.
- Platforms: Lists Windows only. There is no Mac or Linux build.
- Release status: Steam lists the game as released, with no Early Access genre.
- Release date: Steam gives 12 Aug 2025, the PC launch. The consoles came later.
- Free base co-op: The listed price is 24.99 US dollars and the game is not marked free.
store.steampowered.comStore data, read 28 October 2026
Backs Steam Deck.
- Steam Deck: Valve rates the game Playable on Steam Deck.
xbox.comStore page, read 28 October 2026
Backs Online co-op, Most players online, Crossplay, Platforms, Genres, Free base co-op.
- Online co-op: The capabilities list online co-op.
- Most players online: The capability row reads online co-op for 2 to 4 players, and the text says up to 4-players co-op.
- Crossplay: The capabilities list Xbox cross-platform co-op.
- Platforms: Play with PC and Xbox Series X|S. No Xbox One version is listed.
- Genres: Lists Shooter, and the text calls it a roguelite.
- Free base co-op: The Xbox base game is a paid purchase. Game Pass access is a subscription and is separate.
store.playstation.comStore page, read 28 October 2026
Backs Local co-op, Most players online, Platforms, Free base co-op.
- Local co-op: Lists one player on the console, next to four network players. The co-op is online.
- Most players online: Says it supports up to 4 online players with PS Plus.
- Platforms: The product is for PS5 only.
- Free base co-op: The base game is a paid purchase.
store.steampowered.comOfficial news, read 28 October 2026
Backs Crossplay, Platforms.
- Crossplay: The developer's post of 2026-06-25 lists full cross-platform multiplayer with the console launch.
- Platforms: Marks the console launch of 2026-06-25 together with update 1.3.
store.steampowered.comOfficial news, read 28 October 2026
Backs Crossplay, Crossplay between, Platforms.
- Crossplay: The developer's preview of 2026-03-10 promises full cross-platform multiplayer with the console ports. It shipped later.
- Crossplay between: Says you will group up with PC and console players alike, with Xbox and PlayStation 5 named.
- Platforms: Names the Xbox and PlayStation 5 ports.
store.steampowered.comOfficial news, read 28 October 2026
Backs Crossplay.
- Crossplay: The hotfix of 2026-07-07 adds lobby codes that let friends play together cross-platform.
gamedeveloper.comPress, read 28 October 2026
Backs Crossplay, Crossplay between, Platforms.
- Crossplay: The publisher's release of 2026-06-25, hosted by Game Developer, says crossplay is available across PC, PlayStation and Xbox.
- Crossplay between: One pool across PC, PlayStation and Xbox. The only console versions are PS5 and Xbox Series X|S.
- Platforms: Announces the PS5 and Xbox Series X|S versions as the console debut.
indigo-pearl.prezly.comOfficial news, read 28 October 2026
Backs Release date.
- Release date: The publisher's release of 2025-08-12 says the game launches that day on PC.
wikidata.orgWikidata, read 28 October 2026
Backs Wikidata item, Genres, Release date.
- Genres: P136 is first-person shooter and roguelite.
- Release date: P577 is 2025-08-12 for Windows and 2026-06-25 for the consoles.
mp1st.comPress, read 28 October 2026
Backs Kind of game, Working in sync, Tension and danger, Laughter and chaos, Time to hang out.
- Kind of game: Review from 2025-08-24 says co-op is the best way to play, with players covering flanks and reviving each other.
- Working in sync: Says communication and coordination often decide between a clear run and a wipe.
- Tension and danger: Says the most intense sections are hard to survive.
- Laughter and chaos: Calls co-op a chaotic thrill ride.
- Time to hang out: The talk it describes is calls and revives during fights.
thesixthaxis.comPress, read 28 October 2026
Backs Fear, Story, Laughter and chaos, Time to hang out, Working in sync, Tension and danger, Unlocks and progress.
- Fear: Review from 2025-08-12 describes cosmic horror in the setting and red-eyed enemies.
- Story: Says the story does not matter much, with notes to find along the way.
- Laughter and chaos: Mentions the team singing together, odd dancing and nicknaming a turret.
- Time to hang out: The song and dances give the team small social moments between fights.
- Working in sync: Says some blessing combos encourage coordinating with friends.
- Tension and danger: Says the first region boss was overwhelming at times for two players.
- Unlocks and progress: Describes upgrades bought with what each run earns.
avclub.comPress, read 28 October 2026
Backs Jumping and climbing, Planning ahead, Unlocks and progress, Fighting.
- Jumping and climbing: Review from 2025-08-12 says double jumps and dashes keep you moving, and that falling into pits in one zone breaks the flow.
- Planning ahead: Praises the choice of boons and the many weapon permutations when building a run.
- Unlocks and progress: Describes permanent upgrades bought at the base between runs.
- Fighting: Describes fast, Doom-like gunplay with alternate fire modes.
game8.coPress, read 28 October 2026
Backs Sessions, Fear, Getting better, Exploring, Tension and danger, Planning ahead, Story, Unlocks and progress.
- Sessions: Review from 2025-08-15 says a run lasts from about 20 minutes to over an hour.
- Fear: Describes a creeping dread and creature designs that are genuinely scary.
- Getting better: Says you grow more skilled with every run, using positioning and loadouts.
- Exploring: Mentions hidden treasures and secrets that encourage looking around.
- Tension and danger: Says later stages and bosses ramp up and turn punishing, especially in small lobbies.
- Planning ahead: Says the team should plan loadouts that work together.
- Story: Calls the lore intriguing but not explored much.
- Unlocks and progress: Says each run unlocks gear, skills and mods.
gamescreed.comPress, read 28 October 2026
Backs Getting better, Story, Fighting.
- Getting better: Review from 2025-08-14 says you have to learn enemy patterns, time dashes and manage resources.
- Story: Complains of a minimal story.
- Fighting: Calls it mostly a combat game.
thexboxhub.comPress, read 28 October 2026
Backs Tension and danger, Unlocks and progress, Planning ahead.
- Tension and danger: Review from 2026-07-31 says difficulty rises as four players go deeper, and that bosses have punishing attack patterns.
- Unlocks and progress: Says you keep soul fragment upgrades from run to run.
- Planning ahead: Says the blessings you stack depend on your play style.