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In Sink: A Co-Op Escape Prologue

In Sink: A Co-Op Escape Prologue

Play an early version of the first level for free! Work together to solve the puzzles and escape a desert island in this multiplayer co-op adventure. Success requires more than just you and your partner thinking alike - you'll have to communicate and stay In Sink to overcome the challenges ahead.

Released Feb 25, 2023 Developer Clock Out Games Publisher Kwalee Platforms Windows Online Co-OpPuzzleMultiplayerEscape RoomFree to Play
View on Steam ↗ Free (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-26.

90.4%positive5,873 reviews
Recommended · 1 found this helpful

“This game is great if you can play in the same room with your friend as it makes discussions simpler rather than being in a call , it is short but requires IMMENSE communication between both parties , overall a great game try out its demo or the paid game . :D”

— a player, Steam review · 1 hrs played
Recommended · 0 found this helpful

“In Sink: A Co Op Escape Prologue is exactly the kind of cooperative puzzle game I enjoy playing with someone else. I start out stranded on a desert island, but things quickly become much stranger when portals lead into completely different locations. I liked how the game makes…”

— a player, Steam review · 5 hrs played
Recommended · 0 found this helpful

“Luckily for me, I had a good teammate. However, if your teammate is autistic, you're not finding any treasure.”

— a player, Steam review · 1 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. History through 2026-08 via SteamCharts; self-collected from the Steam API since Aug 2026.

926all-time peak
0 100 200 2024 2025 2026 183 avg · Mar 2023

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

4achievements
52.0%median completion
41.6%rarest: In Sink
65.1% of players 61.2% of players 52.0% of players 41.6% of players 65.1% 0% most earned rarest
Almost everyone has
65.1%Clear Room 1 — Clear the first room's puzzles
61.2%Clear Room 2 — Clear the second room's puzzles
52.0%Clear Room 3 — Clear the third room's puzzles
Rarest badges of honor
41.6%In Sink — Hidden achievement
52.0%Clear Room 3 — Clear the third room's puzzles
61.2%Clear Room 2 — Clear the second room's puzzles

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Nov 12, 2024
In Sink is OUT NOW 🧩

You’ve partnered up and puzzled your way through the prologue. Now it’s time to face the portals. In Sink is officially OUT NOW! Check out our official launch trailer below 👇 Dive into 'In Sink' with

Oct 09, 2024
Sink or Swim in Our Latest Demo!

Don't puzzle over when you’ll next get to play In Sink, we've got the answers! We have an exciting new demo for you to explore! The demo showcases a design refresh with updated artwork, new character

Oct 08, 2024
In Sink Launches November 12th

Grab your player 2 and get ready to dive deep into a world of mind-bending co-op puzzles. We’re thrilled to announce that In Sink will launch on November 12th! Check out our release date reveal traile

Jul 15, 2024
Play In Sink at BitSummit

Dive into 'In Sink' with a friend, where being shipwrecked is just the beginning of your co-operative adventure! We’re excited to announce that we'll be showcasing a playable demo of In Sink at BitSum

Jun 14, 2024
Developer Diary #3 - Colorblind Accessibility

Welcome to our third developer diary! Today we will be taking a look at how incorporating colorblind accessibility has profoundly changed our approach to our game design! https://store.steampowered.co

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-26.

GenresAdventure, Casual, Indie, Free To Play
Player tagsOnline Co-Op · Puzzle · Multiplayer · Escape Room · Free to Play · Co-op · Casual · Indie · Adventure · Strategy · First-Person · 3D (Steam store community voting)
FeaturesMulti-player · Co-op · Online Co-op · Steam Achievements · Family Sharing
LanguagesEnglish, French, Italian, German, Spanish - Spain, Arabic, Bulgarian, Czech, Danish, Dutch, Finnish, Greek, Hungarian, Japanese, Korean, Norwegian, Polish, Portuguese - Brazil, Portuguese - Portugal, Romanian, Russian, S…
Achievements4
Minimum system requirements (PC)

Minimum: Requires a 64-bit processor and operating system OS: Windows 10 (64-bit) or newer Processor: Intel Core i5-4150 or AMD FX-4300 Memory: 4 GB RAM Graphics: NVIDIA GeForce GTX 460 or AMD Radeon R7 250X Network: Broadband Internet connection Storage: 2 GB available space