RBWR Utility Thermal Calculator
Online · Version 1.6.7

APRM & Thermal Solver for RBWR

A lightweight, borderless desktop overlay for the Realistic Boiling Water Reactor (RBWR) Roblox game. Calculate reactor power (APRM) and steam flow requirements in real-time.

Overlay HUD Screenshot

Key Features

Designed to sit seamlessly on top of Roblox for quick telemetry monitoring.

Borderless HUD Mode

A borderless window that stays on top of Roblox. You can easily adjust the window opacity from 30% to 100% in settings.

Auto Screen Scanning (OCR)

Automatically reads target demand values directly from the game using OCR when you press the hotkey (default: F7).

Dynamic Power Solver

Calculates exact thermal requirements by dynamically factoring in power usage from feedwater, condenser, and recirculation pumps.

CURRENT BUILD DETAILS

Release Package: v1.6.7

COMPILED ON: 2026-07-13
Release Changelog: added a recirculation override indicator

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Have an idea or a suggestion to improve the calculator? Send it directly to the developer.

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