- Games
- 4:LOOP
4:LOOP
Co-op squads of up to four pick missions, fight alien robots and creatures, and try again after every failed run.
Online co-op for up to 4 players, with crossplay.
- 4 online
- Crossplay
Store pages
Playing together
- Online co-op4 players
- Local co-opNot confirmed
- YesPC, PlayStationFriends 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 DeckNot testedValve has not rated it yet
About the game
An alien invasion has frozen most of humanity in place, and you are one of four people who were spared. You pick missions from a map and drop into wide open areas. There you hack alien machines, collect supplies or rescue survivors while robots and creatures hunt you. The start point, the enemies and the weather change from run to run.
Your squad votes on where to go next, and you can play alone with bots. When a teammate dies, they come back at your base with a broken bone that a medic fixes. The run only ends if everyone dies in one mission. You can pick up and carry a downed friend. Between missions you choose gear, and the bosses at the end of each stage ask different things of the team.
4:LOOP is not out yet and has no release date. It is online only, and the maker says PS5 and PC players can squad up.
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
- Story
- Exploring
- Sessions
- Repeatable runs
- About
- Science fiction, Monsters
Rated on our own feel scale. 4 sources back these ratings.
Screenshots
From the Steam store page. Open one to see it full size.
If you liked 4:LOOP
You will probably enjoy these too. Each one says why.
Warhammer 40,000: Darktide
Why it scores 91%
What they share
- Kind of game
- Squad shooter
- About
- Science fiction and 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 are about science fiction and monsters that hunt you. Both have a lot of fighting side by side.
No big difference from 4:LOOP.
Aliens: Fireteam Elite
Why it scores 90%
What they share
- Kind of game
- Squad shooter
- About
- Science fiction and 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 play in runs or missions you repeat. Both are about science fiction and monsters that hunt you.
No big difference from 4:LOOP.
Sanctum 2
Why it scores 89%
What they share
- Kind of game
- Squad shooter
- About
- Science fiction and 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
How Sanctum 2 differs
- More building than 4:LOOP
- 4 online
Both send your squad into fights where you watch each other's backs. Both are about science fiction and monsters that hunt you. Both have a lot of fighting side by side.
But more building than 4:LOOP.
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
- Local co-op
- Not confirmed
- Most players on one screen
- Not confirmed
- Split or shared screen
- Not confirmed
- Separate-device co-op
- Not confirmed
- Most players on separate devices
- Not confirmed
- Free base co-op
- Not confirmed
- Confirmed free setups
- Not confirmed
- Friends can join mid-game
- Not confirmed
- Only one of you needs to buy it
- Not confirmed
- Voice chat by distance
- Not confirmed
Sources
8 pages
play4loop.comOfficial site, read 28 October 2026
Backs Online co-op, Most players online, Crossplay, Crossplay between, Genres, Kind of game.
- Online co-op: The FAQ says the game is online only and needs an internet connection. It also describes joining friends with a party code.
- Most players online: The FAQ says squads have up to four players, and that you can play solo with bots.
- Crossplay: The FAQ says cross-platform play is supported across PS5 and PC. It sits in the closed beta FAQ, so it is the maker's plan for the game, not a launch statement.
- Crossplay between: The same FAQ line names PS5 and PC. The PC version is on Steam, so this means Windows.
- Genres: The page calls it a tactical co-op shooter.
- Kind of game: The page calls it a tactical four-player co-op shooter that is best enjoyed with co-op play.
store.playstation.comStore page, read 28 October 2026
Backs Online co-op, Most players online, Release status, Genres.
- Online co-op: The page says online play is required.
- Most players online: The page calls it a four-player co-op shooter.
- Release status: The page says Announced, with the release date to be determined.
- Genres: The page calls it a roguelike co-op shooter.
store.steampowered.comStore page, read 28 October 2026
Backs Online co-op, Crossplay, Release status, About, Tension and danger, Getting better, Unlocks and progress, Story.
- Online co-op: Features list Online Co-op.
- Crossplay: Features list Cross-Platform Multiplayer. The maker's FAQ names the platforms.
- Release status: Steam says Coming soon and shows the game as not yet available.
- About: The text covers an alien invasion, a mothership, killer robots and mutated plants and animals.
- Tension and danger: The text warns that you will probably die a lot. Provisional.
- Getting better: The text asks you to experiment and improvise after each death. Provisional.
- Unlocks and progress: The text says every attempt unlocks new gear.
- Story: The text hints at secrets about the invasion to uncover. Provisional minor story.
store.steampowered.comStore data, read 28 October 2026
Backs Steam app ID, Online co-op, Crossplay, Release status.
- Steam app ID: The opened product is app 3355360.
- Online co-op: Categories include Online Co-op.
- Crossplay: Categories include Cross-Platform Multiplayer.
- Release status: Steam shows the release date as coming soon.
store.steampowered.comStore data, read 28 October 2026
Backs Steam Deck.
- Steam Deck: Valve has not rated the game for Steam Deck.
blog.playstation.comOfficial news, read 28 October 2026
Backs Most players online, Sessions, Kind of game, Unlocks and progress, Exploring, Getting better.
- Most players online: The announcement of 2025-12-11 calls it a four-player co-op shooter.
- Sessions: The director describes missions that build toward a boss at the end of each act, played again and again across runs.
- Kind of game: The director talks about rescuing each other and carrying a downed friend.
- Unlocks and progress: The director mentions layers of meta-progression and better equipment after each mission.
- Exploring: The director says the environments are wide open and players manage their own risk.
- Getting better: The director says there are many details to learn about how the world works. Provisional.
blog.playstation.comOfficial news, read 28 October 2026
Backs Genres, Kind of game, Sessions, Working in sync, Planning ahead, Tension and danger, Fighting, Laughter and chaos, Story, Exploring, About.
- Genres: The game director calls it a rogue-like co-op shooter.
- Kind of game: A squad votes on a route, picks gear and has fallen teammates reprinted at the base. The bosses are built around teamwork.
- Sessions: A run is a chain of missions with random starts, ending in a boss, and a failed run starts a new one.
- Working in sync: The director says you succeed through cooperation and improvisation, and each boss tests teamwork in its own way.
- Planning ahead: Players vote on the route on a map, then pick rewards and loadouts. The director says you need to look ahead.
- Tension and danger: The run ends if the whole team falls in one mission, and drop pods of robots keep coming. Provisional.
- Fighting: The director calls it a combat sandbox with robot squads, creatures and a boss at the end of each section.
- Laughter and chaos: The director talks about emergent, endlessly replayable chaos. No source shows the group laughing, so this is a minor rating.
- Story: The director mentions mysteries to unravel, such as why you were spared. Provisional minor story.
- Exploring: Environments are wide open with random start places, weather and time of day, but each mission has objectives and an exit.
- About: The post covers an alien invasion and mothership, killer robots and creatures such as a rampaging beast.
wikidata.orgWikidata, read 28 October 2026
Backs Wikidata item.
- Wikidata item: The item is a video game with Steam id 3355360.