6-Player Nuclear Reactor Co-op
Meltdown Crew Wiki
Keep a 1980s nuclear reactor running with up to six players. Learn reactor controls, handle fragile fuel rods, fix outages, coordinate through voice chat and phones, and prevent a meltdown.
Latest Guides
Browse All Guides
Water Level Management and Drainage Guide
Lower the Meltdown Crew water level by clearing blocked drains, balancing coolant valves, and venting excess pressure before the facility floods.
Reactor Upgrades Guide: Floppy Disks and Items
Learn how Meltdown Crew reactor upgrades work, including shop floppy disk unlocks, equipment costs, and control room drive installation.
Reactor Guide: Operating Co-Op Nuclear Plants
Operate reactors safely in Meltdown Crew. Manage fuel rods, control coolant pressure, repair burst pipes, and prevent meltdowns in co-op shifts.
Reactor Cooling Guide: Valve, Pump, and Drain Fixes
Keep Meltdown Crew reactor cooling stable. Learn valve percentages, drain clearing, pump power resets, and steam pressure venting to prevent explosions.
Radiation Management and Reactor Safety Guide
Meltdown Crew radiation management requires careful fuel rod transport, steady coolant flow, and prompt decontamination to prevent lethal plant meltdowns.
Microphone Echo Fix and Voice Settings
Fix Meltdown Crew microphone echo and self-hearing issues with verified audio settings, mic test toggles, and voice chat adjustments.
Power Outages Guide: Restoring Electricity
Meltdown Crew power outages shut down coolant pumps and lights. Locate replacement fuses in the electrical room and flip breakers before a core meltdown occurs.
Hotbar Problem: Causes and Workarounds
Resolve the Meltdown Crew hotbar problem where items cannot be assigned or selected due to keyboard layout conflicts during demo testing.
Phones: How to Use Landlines and Voice Chat
Meltdown Crew phones connect isolated reactor wings when proximity voice chat falls out of range. Learn how to place calls and manage audio settings.
Meltdown Crew fatal error Crash Causes and Troubleshooting Steps
Resolve Meltdown Crew fatal error crashes with verified player triggers, system requirements, and official community reporting steps.
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Your Meltdown Crew Journey
Reactor Operations Basics
Review fundamental shift responsibilities, core setup rules, and communication procedures needed to survive your first workday.
Fuel Rod Handling
Examine fragile physics mechanics, proper insertion sequencing, and safe disposal methods to prevent lethal explosions.
Cooling and Pressure
Study valve percentage balancing, manual steam venting below 30 MPa, and floor drain maintenance.
Voice and Phone Setup
Configure proximity audio, calibrate microphone reverb, and operate wired landline handsets across isolated plant rooms.
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Guides & References
Release Date: Launch Window and Demo Details
Meltdown Crew launches on PC in December 2026. Check the official release window, playable Steam demo details, platforms, and system requirements.
Demo: How to Play, Co-Op Roles, and System Specs
The Meltdown Crew demo lets up to six players manage a chaotic 1980s nuclear reactor on Steam. Check gameplay roles, item costs, and PC specs.
Playtest Guide: How to Join and Reactor Basics
Meltdown Crew playtest access details cover Steam demo testing, Discord recruitment, co-op reactor roles, and PC system specs.
Steam Release, Demo Details, and PC Specs
Meltdown Crew Steam details cover the official December 2026 release window, free co-op demo features, system specs, and reactor gameplay mechanics.
Player Count: Lobby Size and Co-Op Capacity
Meltdown Crew player count supports up to 6 players in online co-op. Check lobby limits, single-player options, and Steam demo details.
Proximity Voice Chat and Landline Phone Guide
Set up Meltdown Crew proximity voice chat and landline phones properly to coordinate reactor tasks, adjust reverb, and prevent voice echo issues.
Floppy Disks: How to Buy, Insert, and Use Upgrades
Meltdown Crew floppy disks unlock advanced reactor components. See how to purchase discs, install them into drive slots, and resolve insertion glitches.
Fuel Rod Handling and Disposal Guide
Prevent catastrophic nuclear explosions in Meltdown Crew with proper fuel rod handling, insertion rules, physics precautions, and spent core disposal tips.
Fuse Replacement Guide to Restore Power
Meltdown Crew fuse replacement restores power to coolant pumps and lights during electrical outages. Find fuses in the electrical room and flip switches.
Phones: How to Use Landlines and Voice Chat
Meltdown Crew phones connect isolated reactor wings when proximity voice chat falls out of range. Learn how to place calls and manage audio settings.
Power Outages Guide: Restoring Electricity
Meltdown Crew power outages shut down coolant pumps and lights. Locate replacement fuses in the electrical room and flip breakers before a core meltdown occurs.
Reactor Cooling Guide: Valve, Pump, and Drain Fixes
Keep Meltdown Crew reactor cooling stable. Learn valve percentages, drain clearing, pump power resets, and steam pressure venting to prevent explosions.
Reactor Guide: Operating Co-Op Nuclear Plants
Operate reactors safely in Meltdown Crew. Manage fuel rods, control coolant pressure, repair burst pipes, and prevent meltdowns in co-op shifts.
Reactor Upgrades Guide: Floppy Disks and Items
Learn how Meltdown Crew reactor upgrades work, including shop floppy disk unlocks, equipment costs, and control room drive installation.
Water Level Management and Drainage Guide
Lower the Meltdown Crew water level by clearing blocked drains, balancing coolant valves, and venting excess pressure before the facility floods.
Radiation Management and Reactor Safety Guide
Meltdown Crew radiation management requires careful fuel rod transport, steady coolant flow, and prompt decontamination to prevent lethal plant meltdowns.
Control Rod Flying Out Fix and Prevention Guide
Fix Meltdown Crew control rod flying out issues with fuel cycle timing, coolant flow, pressure venting, and correct insertion sequence.
Coolant Room Flooding: Causes and Fixes
Fix Meltdown Crew coolant room flooding by clearing clogged vent trash, welding burst pipes, venting pump pressure, and resetting tripped power.
Meltdown Crew fatal error Crash Causes and Troubleshooting Steps
Resolve Meltdown Crew fatal error crashes with verified player triggers, system requirements, and official community reporting steps.
Hotbar Problem: Causes and Workarounds
Resolve the Meltdown Crew hotbar problem where items cannot be assigned or selected due to keyboard layout conflicts during demo testing.
Microphone Echo Fix and Voice Settings
Fix Meltdown Crew microphone echo and self-hearing issues with verified audio settings, mic test toggles, and voice chat adjustments.
Discord: Official Server Links and Community Guide
Find the official Meltdown Crew Discord server link to participate in playtests, enter key giveaways, and organize co-op shifts with other players.
The Game at a Glance
What is Meltdown Crew?
Meltdown Crew is an online cooperative nuclear simulation game developed by Meltdown Games and published by Duhndal. Solo players or teams of up to six operate a fragile 1980s-era power plant on Windows PC, managing volatile physics-based systems and balancing power quotas against catastrophic meltdowns.
During a shift, workers divide tasks between the control room, the reactor floor, coolant chambers, and electrical panels. Crews insert stabilizing control rods before loading fragile fuel rods, vent pump steam lines below 30 MPa, weld burst pipes, swap blown fuses, and coordinate through landline phones.
Explore All Guides- Developer
- Meltdown Games
- Publisher
- Duhndal
- Platform
- Windows PC
- Genre
- Action / Simulation / Strategy
- Max Co-op Players
- 6
- Positive Demo Reviews
- 91%
- Demo Release
- Oct 19, 2026
- Planned Full Release
- Dec 2026
Choose Your Topic
Find Your Next Guide
From the Steam demo and reactor basics to co-op voice chat and PC requirements, choose the topic you need.
Demo and Release Date
Play the free Steam demo, released on October 19, 2026. The full game is currently scheduled for December 2026 and is available to wishlist on Steam.
Meltdown Games plans to release the full PC version on Steam in December 2026.
A free standalone demo debuted on October 19, 2026, featuring six Steam achievements and online co-op.
Demos feature a Compact Reactor for smaller teams and a Regular Reactor that separates maintenance bays.
Beginner Guide
Keep the reactor stable while producing power by adjusting cooling, replacing and disposing of fuel rods, and responding to power outages and blown fuses. Handle fragile fuel rods carefully, because collisions with doorways or coworkers can be fatal.
Workers must place graphite control rods into core slots before inserting fragile uranium fuel rods.
Engineers adjust water valves and pull manual release levers to keep line pressure below 30 MPa.
Submerging to remove trash and welding burst pipes prevents coolant room flooding from tripping pumps.
More details
Electrical runners grab spare fuses and flip tripped breaker switches to restore power to coolant pumps.
Multiplayer and Voice Chat
Run the plant with up to six players in online co-op. Use proximity voice chat and landline phones to coordinate between the control room and teammates working around the reactor.
Local voice chat carries over short distances, with push-to-talk mapped to the V key by default.
Handsets link the control room to distant bays across thick walls that mute proximity audio.
Online co-op lobbies accommodate up to six players divided across plant sectors.
System Requirements
Minimum requirements include Windows 10 or 11, an Intel Core i5-4590, 8 GB RAM, and a GeForce GTX 1050. The recommended configuration includes 16 GB RAM and a GTX 1660; both configurations list DirectX 12 and 1 GB of storage.
The game requires 64-bit Windows 10 or Windows 11 with DirectX 12 support.
Minimum specs call for an Intel Core i5-4590 with 8 GB RAM and an NVIDIA GeForce GTX 1050.
Meltdown Crew requires 1 GB of available storage space on PC.
Quick Answers
Frequently Asked Questions
When does Meltdown Crew release?
Meltdown Crew is scheduled to launch on Windows PC via Steam in December 2026.
How many players can play Meltdown Crew?
Meltdown Crew supports solo play as well as online cooperative multiplayer for up to six players in a lobby.
Is there a playable demo for Meltdown Crew?
A free playable demo launched on Steam on October 19, 2026, offering co-op gameplay, six achievements, and two reactor layouts.
Does Meltdown Crew require a microphone?
Steam hardware recommendations specify a microphone for voice communication, which powers in-game proximity chat and landline phones.
What platforms will Meltdown Crew be available on?
Meltdown Crew has been announced exclusively for Windows PC on Steam, with console editions remaining unconfirmed.
How do you revive downed teammates in Meltdown Crew?
Surviving crew members can buy a medical revive syringe from the break room vending machine for 500 dollars and inject their fallen coworker's body.
Where will you start?
Start with the demo, learn reactor controls, or set up co-op voice chat.
Meltdown Crew · Platform: Windows PC · Developer: Meltdown Games
Keep exploring
Control Rod Flying Out Fix and Prevention Guide
Fix Meltdown Crew control rod flying out issues with fuel cycle timing, coolant flow, pressure venting, and correct insertion sequence.
Steam Release, Demo Details, and PC Specs
Meltdown Crew Steam details cover the official December 2026 release window, free co-op demo features, system specs, and reactor gameplay mechanics.
Microphone Echo Fix and Voice Settings
Fix Meltdown Crew microphone echo and self-hearing issues with verified audio settings, mic test toggles, and voice chat adjustments.
Reactor Cooling Guide: Valve, Pump, and Drain Fixes
Keep Meltdown Crew reactor cooling stable. Learn valve percentages, drain clearing, pump power resets, and steam pressure venting to prevent explosions.
Playtest Guide: How to Join and Reactor Basics
Meltdown Crew playtest access details cover Steam demo testing, Discord recruitment, co-op reactor roles, and PC system specs.
Phones: How to Use Landlines and Voice Chat
Meltdown Crew phones connect isolated reactor wings when proximity voice chat falls out of range. Learn how to place calls and manage audio settings.
Water Level Management and Drainage Guide
Lower the Meltdown Crew water level by clearing blocked drains, balancing coolant valves, and venting excess pressure before the facility floods.
Demo: How to Play, Co-Op Roles, and System Specs
The Meltdown Crew demo lets up to six players manage a chaotic 1980s nuclear reactor on Steam. Check gameplay roles, item costs, and PC specs.
Discord: Official Server Links and Community Guide
Find the official Meltdown Crew Discord server link to participate in playtests, enter key giveaways, and organize co-op shifts with other players.
Proximity Voice Chat and Landline Phone Guide
Set up Meltdown Crew proximity voice chat and landline phones properly to coordinate reactor tasks, adjust reverb, and prevent voice echo issues.