STRATUM-RS Overlay (stratum-rs-overlay)

Commercial Electron Game Overlay SDK for Windows.
Built with Rust + N-API for high-performance, DLL-injection-free overlays.

   _____ _______ _____          _______ _    _ __  __       _____   _____
  / ____|__   __|  __ \   /\   |__   __| |  | |  \/  |     |  __ \ / ____|
 | (___    | |  | |__) | /  \     | |  | |  | | \  / |_____| |__) | (___
  \___ \   | |  |  _  / / /\ \    | |  | |  | | |\/| |_____|  _  / \___ \
  ____) |  | |  | | \ \/ ____ \   | |  | |__| | |  | |     | | \ \ ____) |
 |_____/   |_|  |_|  \_/_/    \_\  |_|   \____/|_|  |_|     |_|  \_\_____/

         🤖 -> 📦 -> 📦 -> 📦 -> 🏗️
        "Shipping stable overlays, one build at a time."

Official Website

• Purchase license key: https://stratum-rs.com
• Product updates and contact: https://stratum-rs.com

What Is STRATUM-RS?

STRATUM-RS Overlay is a paid, production-focused Electron overlay library for game and real-time desktop applications on Windows.
It tracks target windows and renders transparent overlays without DLL injection, helping teams build anti-cheat-friendly overlay features with a native-performance core.

Why Teams Use It

• No DLL injection into game processes.
• Rust native core for fast event handling and low overhead.
• Click-through overlay behavior for seamless in-game UX.
• Window focus/move/blur tracking for dynamic positioning.
• Commercial licensing model with built-in license verification.

Installation

npm install stratum-rs-overlay

License Key (Required)

This is a commercial library. A valid license key is required.

1. Get your key from https://stratum-rs.com
2. Store it in an environment variable:

STRATUM_LICENSE_KEY=your_license_key_here

Quick Start (Electron Main Process)

const { app, BrowserWindow } = require('electron');
const stratumOverlay = require('stratum-rs-overlay');
require('dotenv').config();

function toHwnd(win) {
  const hwndBuf = win.getNativeWindowHandle();
  return process.arch === 'x64'
    ? Number(hwndBuf.readBigInt64LE(0))
    : hwndBuf.readInt32LE(0);
}

app.whenReady().then(() => {
  const isLicensed = stratumOverlay.init(process.env.STRATUM_LICENSE_KEY || '');
  if (!isLicensed) {
    throw new Error('Invalid STRATUM-RS license key');
  }

  const overlayWindow = new BrowserWindow({
    width: 800,
    height: 600,
    frame: false,
    transparent: true,
    alwaysOnTop: true,
    webPreferences: { contextIsolation: true },
  });

  overlayWindow.setIgnoreMouseEvents(true, { forward: true });

  stratumOverlay.setOverlayPid(overlayWindow.webContents.getOSProcessId());
  stratumOverlay.setOverlayHwnd(toHwnd(overlayWindow));

  const targets = [
    { name: 'League of Legends (TM) Client', mode: 'exact' },
    { name: 'PUBG:', mode: 'contains' },
  ];

  stratumOverlay.startTracking(
    targets,
    (event) => {
      // eventType: focus | move | blur
      // x, y, width, height, targetName
      console.log('[STRATUM-RS]', event);
    }
  );

  stratumOverlay.startMouseTracking(undefined, {
    cursorPollIntervalMs: 100,
    cursorEmitIntervalMs: 100,
    idlePollIntervalMs: 100,
  });
});

API At A Glance

• init(licenseKeyHex: string): boolean
• setOverlayPid(pid: number): void
• setOverlayHwnd(hwnd: number): void
• startTracking(targets, callback): void
• startMouseTracking(targetName?, options?): boolean
• stopMouseTracking(): boolean
• focusLastTarget(): boolean
• stopTracking(): boolean

Target Matching

targets supports exact and partial title matching.

[
  { name: 'MapleStory', mode: 'exact' },
  { name: 'PUBG:', mode: 'contains' }
]

Platform / Requirements

• OS: Windows 10 or Windows 11 (64-bit)
• Runtime: Node.js + Electron
• Architecture: x64 (win32)

Commercial License

Usage without a valid license key is not permitted.

• Website: https://stratum-rs.com
• Contact: [email protected]

Copyright (c) 2026 JJoGeon. All rights reserved.

Search-Friendly Summary

STRATUM-RS is a commercial Electron overlay SDK for Windows game overlays.
Keywords: electron game overlay, anti-cheat friendly overlay, DLL injection free overlay, transparent click-through overlay, Rust N-API native addon, Windows overlay tracking SDK.