Sync Or Sink

Sync Or Sink

Low Effort Interactive · October 1, 2025 · Action, Co-op, Team-Based, Action-Adventure, 3D

Sync Or Sink is free to play — no purchase needed. We track it so you know if that ever changes.

PC
Very Positive89% · 165
This game is free to play. Get it on Steam →

Screenshots

Sync Or Sink price

Sync Or Sink is free to play — there is no purchase price, on Steam or anywhere else we track. We keep watching it, so if it ever stops being free the price history on this page will show when that happened and what it changed to.

About Sync Or Sink

You're trapped in an old Cold War submarine. Your only goal: survive. Complete urgent repairs, manage limited resources, and keep the systems running. You can’t see each other. One misstep, one wrong call, and it’s all over.
Use your voice. Trust your partner. And don't run out of time.You’ll never make it alone. Communicate through a crackling walkie-talkie. One speaks, the other listens - no exceptions. Relay codes, fix malfunctions, and guide each other through a maze of rust, steam, and shadows.
Forget clear sight. All you’ve got is each other’s voice. Keep it steady.Time is not your friend. Each second wasted brings your doom closer - flooding compartments, failing engines, failing minds. Complete your tasks quickly. Stay calm under pressure. And if you mess up?You’ll hear it. Feel it. Maybe even see it... before the ocean swallows you whole.

Sync Or Sink — game info

Platforms
Windows
Player modes
Online co-op
PC Game Pass
Not included

What Steam players say

Recent verbatim reviews from Steam — separate from playze.io community reviews below.

Not recommended Sep 16, 2026
After almost a year in Early Access the game seems to have had no updates, and is too broken to be enjoyed. The game is built around in-game voice chat, which breaks after one run, necessitating a restart. Doors have symbols on them indicating which button should be pressed by the other player to open them, the shapes sometimes don't have their colours, which requires a restart to fix. One of the players can accidentally quit the game, this can occur easily easily as the game does not ask if you're sure before shutting down. It also does not inform the other player that they're alone now, and the player is not able to rejoin the session. A cool concept but genuinely unplayable as is.
1 found this helpful
Recommended Aug 14, 2026
6767 COOL GAME
1 found this helpful
Recommended Sep 9, 2026
pretty fun!
Recommended Sep 2, 2026
When it works it's pretty fantastic, there's just a few annoying problems holding it back. Sometimes the radio voice chat just didn't work, sometimes we got stuck in the walls, sometimes you just spawn in not being able to move or look around at all, and sometimes one of us got into the game while the other was stuck in the lobby. I also had to change the default mic in my pc settings for it to work in-game because the only setting is the voice chat volume. Of the few games we played, only about half were without any issues, but when everything works, it works very well as a quick little challenge for you and a buddy to give a go. The gameplay is fun, there's a nice balance between what the captain and engineer are doing, and the vibes are absolutely immaculate. I actually kinda wish it lasted a little bit longer Edit, there's a toilet. You can piss.
Not recommended Aug 14, 2026
didnt work in multiplayer. we couldn't use the comms, we got stuck in the map multiple times, and im 90% sure there wasnt a breach anywhere
Recommended Jul 27, 2026
yeah don't ever ask for help from the terminal

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