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Protocol Meltdown

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Protocol Meltdown screenshot 1
Protocol Meltdown Trailer trailerWatch trailer on Steam ↗

Protocol Meltdown

Lucas Bellamy · Published by Lucas Bellamy

Last updated 9 Oct 2026

Manage BioFission Research's new highly unstable prototype nuclear reactor codenamed "Project Vermillion," produce enough power to satisfy demand and turn a profit, all while preventing it from destroying the entire facility.

DJCTQ 10Co-op

£2.49

Lowest price we've ever recorded

View on Steam

Prices can lag the live Steam store — always confirm before buying.

Price history

4 Sept 2026Lowest: £2.49 · Highest: £2.499 Oct 2026

Action, Simulation, Strategy · 2025 · More under £5 games

Navigate the complex challenges of Protocol Meltdown, where you must balance production and profit while keeping a volatile nuclear reactor from causing catastrophic failure.

About this game

A reactor simulation game, where you play as a new reactor operator, tasked with keeping "Project Vermillion," the new highly-unstable prototype reactor from BioFission Research safe.

 Manage critical systems, like pressure, temperature, power output, feedwater levels, and most importantly, profit. Defend the reactor from mindless killing zombies we call "experiments," soulless saboteurs hired by big oil, and the tactical law-enforcement agents who found out too much about what happens inside the facility.

Play one of the four tuned difficulties alone, or bring some friends along for a more challenging experience with up to four players. Explore and manage the simulation, manage your funds, and keep the reactor stable for long enough to beat high scores, before the inevitable happens.

System Requirements

Will my PC run this? →

Minimum

Minimum:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10 64 bit
  • Processor: Dual core 64 bit processor
  • Memory: 4 GB RAM
  • Storage: 300 MB available space

Recommended

Recommended:
  • Requires a 64-bit processor and operating system
  • OS: Windows 10/11 64 bit
  • Processor: Quad core 64 bit processor
  • Memory: 8 GB RAM
  • Graphics: GPU with support for OpenGL 2.1+
  • Storage: 300 MB available space
  • Additional Notes: 1920x1080 Display

Supported Languages

English*
*languages with full audio support

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