Game guide

Dead Sewers Guide: Getting started with your boat

Dead Sewers🌊[Alpha]

Three Piggys!, Playing 313, Rating 90.6%

Creator Three Piggys!

Playing 313

Rating 90.6%

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About

Overview

Dead Sewers is a survival game set in the biochemically ruined city sewers of 2077. You pilot a turbo-speed boat through flooded tunnels, gather rare resources, trade with mechanical rats, and work toward an escape route.

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What is on this page

Contents

01 Getting started with your boat Step 02 Surviving mutant piranha Warn 03 Trading with the Mech-Rat Task Force Tips 04 Co-op and rescuing the lost Summary 05 Harder modes and the Octopus Lord Check 06 Working codes Codes 07 Glossary Words 08 Common questions FAQ

Player notes and tips

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Getting started with your boat

Step

In short Mastering boat controls early makes everything else in the game easier.

Your boat is your only way to move through the sewer network. Start in areas where fewer enemies are present so you can focus on handling rather than survival. Once you feel confident, push into new tunnels and see what the wider map holds.

Collect resources early stick to quieter areas at first so you can gather without constant pressure from piranha.
Find the manholes escaping means locating the right passage, so keep an eye out for exits as you explore.

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Surviving mutant piranha

Warn

In short Running is almost always smarter than fighting when piranha close in.

Mutant piranha appear in groups and are aggressive. The sewer layout works in your favour — narrow, branching channels are harder for enemies to chase you through than open water.

Worth watching out for

Accelerate the moment you spot piranha putting distance between you and them is your best defence.

Turn into narrow side tunnels enemies have a harder time following you through tight, branching waterways.

Trading with the Mech-Rat Task Force

Tips

In short The mechanical rats are the link between the resources you collect and the escape route you need.

The Mech-Rat Task Force is scattered across the sewer network. Each mechanical rat will trade resources you bring for items or upgrades, and some of those items are required to unlock the escape route.

Tips worth knowing

Explore the full map to find where each mechanical rat is stationed — they are spread across multiple locations.
Keep your inventory from filling up completely — a full inventory means you cannot pick up anything new, which stalls your trading chain.

Co-op and rescuing the lost

Summary

In short The game rewards teamwork and has specific characters to rescue, so playing with others opens up extra goals.

Dead Sewers tracks four specific people — Bill, Bev, Lily, and Richie — who are being held by a character called CLOWN IT. Rescuing each of them is a distinct objective.

Friendship badge　earned by playing alongside another person.
Bill, Bev, Lily, Richie　four separate rescue targets, each held by CLOWN IT somewhere in the sewers.
Secret Pipeline　a hidden route that can be opened, worth hunting for during exploration.
Travel milestone　the game tracks distance; 10 km of travel through the sewer earns its own reward.

Harder modes and the Octopus Lord

Check

In short PRO mode and New Mode add tougher objectives.

Beyond the standard sewer run, the game includes harder challenge modes. The Bubble-Gum Laboratory must be cleared on PRO mode, and a boss called the Octopus Lord appears in New Mode.

In New Mode, the Octopus Lord is the boss to defeat.
PRO mode features the Bubble-Gum Laboratory as a stage to complete.

06 Working codes Codes

HAPPYAUTUMN25 10 Cheese Bonds

10 Cheese Bonds

DISCORDYES

5KLIKES

XMAS2025TH 30 Cheese Bonds

30 Cheese Bonds

Every code, and the votes on it, are on the codes page

Glossary

Mech-Rat Task Force: The abandoned group of mechanical rats spread through the sewers who trade resources for items and upgrades.
Mutant Piranha: Aggressive fish enemies created by biochemical contamination that patrol the sewer waterways in groups.
Escape Route: The critical passage out of the sewers that players work toward by trading with mechanical rats.
Turbo Speed: The top speed of your boat, used for moving through the sewer network.
CLOWN IT: An enemy character in the sewer that holds four named people — Bill, Bev, Lily, and Richie — captive.
PRO Mode: A harder difficulty that includes the Bubble-Gum Laboratory as a stage to complete.
New Mode: An alternate mode that features the Octopus Lord as a boss enemy.
Inventory: The space you carry for collected resources; once it is full, you cannot pick up anything new.

Common questions

FAQ

How do I find the escape route?

The escape route is unlocked through trading with the Mech-Rat Task Force. Collect resources, trade them with mechanical rats for the items you need, and follow the chain of trades until you have what is required to open the exit passage.

How do I rescue Bill, Bev, Lily, and Richie?

Each of the four is being held by CLOWN IT somewhere in the sewer. You need to find and rescue them individually, and each rescue is tracked as a separate objective.

Is there any reason to play with a friend?

Yes — there is a badge specifically for playing co-operatively with another person.

Updated Oct 4, 2026
Game updates can change what is on this page. If you spot something, get in touch and let us know.

Dead Sewers🌊[Alpha] Three Piggys!, Playing 313, Rating 90.6%

See the game page See working codes Ask on the board