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REX Atmos Core

Redefine Your Skies!

The ultimate real-time atmospheric, weather, & environmental engine for Microsoft Flight Simulator 2024. Directly integrated into the sim's core, it delivers physically based realism, live feedback, & complete control over skies, lighting, atmospherics, clouds, and more. Compatible with Asobo Live Weather, ActiveSky FS, custom weather, & saved flights.

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The only real-time atmospheric, weather, and environmental engine for Microsoft Flight Simulator 2024. Unlike post-processing filters, CORE injects changes directly into the simulator's core engine for physically-based realism, cinematic immersion, and instant visual feedback.

REX Atmos CORE for MSFS 2024

Modular. Powerful. Intuitive.

The interface is divided into three editors: Weather, Atmos, and Enviro, so you can create, customize, save, and share presets with real-time visual feedback. Whether tuning for realism or crafting a cinematic look, adjustments happen instantly.

Deep Immersion

Shape weather, atmosphere, and environment in real time. Atmos CORE injects at the simulator level for physically-based realism and creative control.

Unique

Not like ReShade or NVIDIA filters, CORE changes engine variables inside MSFS 2024, so visuals respond naturally to the world.

Engine-level integration

CORE Home UI

Compatibility

Use Asobo Live Weather, Weather Presets, or ActiveSky FS, or craft your own: temperature, humidity, pressure, winds, cloud layers/heights, storms, haze/fog, and more.

Simple & Safe

Clean, organized UI. Non-destructive workflow, RESET or exit to revert. Real-time rendering eliminates guesswork.

Live Weather Depiction & Tuning

Live Weather Depiction & Visual Tuning

Fine-tune how real-time weather is rendered. Adjust Weather Impact Scale and Mode to control how strongly live conditions influence atmospheric behavior. No guesswork, just instant results.

Atmospheric Simulation & Particulate Emulation

Simulate realistic atmospheric layers, tune scattering height and Rayleigh RGB values, and adjust light phase functions for believable horizons and beautifully blended sky transitions.

Atmospheric layers & scattering

Enviro color & light

Environmental Light Tuning & Ambient Coloring

Precisely tune global tone, ambient tint, and lighting with detailed RGB controls. Lock channels for surgical accuracy or adjust each independently to shape the world's color response under any condition.

Weather Type Selection & Detailed Weather Creation

Build detailed scenarios or modify live weather in real time. Switch between Live Asobo Weather, Preset Weather, or ActiveSky FS, and share your weather with others so they can experience the exact same conditions. Perfect for multiplayer immersion.

Weather creation UI

Preset management & cloud backup

Powerful Preset Management

Save and auto-load your favorite looks and weather. Presets are stored locally and in the cloud for peace of mind across reinstalls or device changes.

Built for Simulator Purists

Not a shader overlay, CORE operates inside MSFS 2024 with physically-based modeling and real-time feedback.

Future-ready overview

Future-Ready Features

Planned dynamics that evolve during flight and integration with REX Weather CORE for smart auto-adjustments.

Future-ready overview

Quick Look — Features

  • Real-Time Core Integration: Changes inside MSFS 2024 (not filters).
  • Immediate Visual Feedback: Tune without guesswork.
  • True-to-Life Simulation: Weather, lighting, clouds.
  • Modular Interface: Weather, Atmosphere, Enviro.
  • Custom Weather Creation: Build or modify live weather.
  • Advanced Atmospheric Controls: Rayleigh, phase, particulate.
  • Precise Environmental Lighting: Global tone & RGB controls.
  • Preset Management: Save/share/auto-load; cloud backup.

FAQ’s

Does Atmos CORE support live weather?
Yes, use Live Asobo Weather, Weather Presets, or ActiveSky FS. Tune how strongly conditions influence visuals via Weather Impact Modes.

Is it compatible with other add-ons?
Yes, CORE works inside MSFS 2024 and alongside third-party add-ons.

Can I create and share my own scenarios?
Absolutely, save, share, and auto-load; data backed up locally and in the cloud.

How is CORE different from ReShade/NVIDIA filters?
CORE is not a post-process overlay; it changes core atmospheric and lighting variables in real time.

Performance?
Atmos CORE is designed for smooth performance, even on mid-range systems. When adjusting sliders, there may be a brief pause as the system processes the changes, but once settings are applied, FPS will stabilize and return to normal.

Minimum System Requirements

Flight Simulator:
Microsoft Flight Simulator 2024

Windows Operating System:
Windows 10, Windows 11

Internet Connection:
Required for installation, registration, and operation

REFUND POLICY: No refund, credit or replacement of any kind is available for download products. It is your responsibility to transfer your purchased download products from our servers to your computer. Considering the technical nature of the internet, REX Game Studios will make every effort to resolve any issues you may have while attempting to download your products to ensure successful delivery.

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