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[⚡UPD] Realistic Boiling Water Reactor Simulator

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About this game

📜 v2.1.5 - Missions & Customization! (September 12th, 2026)

Hello employee, and welcome to the Harrison Generating Station, located in Abbotsford, Canada!

This reactor simulation experience aims to deliver the most engaging 3D multiplayer reactor simulator ever made! We aim to provide players with a realistic experience operating a Boiling Water Nuclear Reactor while keeping the game arcade-style so players can have fun.

In Realistic Boiling Water Reactor Simulator, you earn points for successfully meeting electricity demand from the grid. The more points you earn, the higher your facility rank is, allowing you to unlock more rooms, abilities, and much more! Please utilize the in-game tutorials before starting, so you know how to operate the reactor!

RBWR features three selectable classical BWR reactor types, plus an RBMK reactor type across two playable units. Unit 01 is simplified for learning, while Unit 02 offers more advanced and in-depth realistic operations.

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Where beginners should start

Guide

01 Starting out — tutorial and Unit 01 Finishing the tutorial before touching the controls will save you a lot of frustration.
02 Unit 01 versus Unit 02 Get comfortable on Unit 01 before moving to Unit 02, because the jump in difficulty is significant.
03 Reactor types available There are four reactor types in total — three classical BWR options and one RBMK — each with its own procedures.
04 Earning points and climbing ranks Every point you earn comes from keeping the grid supplied, and every rank unlocks something new.