Horadric Eye

A multibox launcher for Diablo II Resurrected on Windows. Run multiple accounts at the same time — Battle.net or Steam — with automatic mutex bypass, window layouts, playtime tracking, and a built-in runeword reference.

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Download

👉 Download the latest installer from Releases

Requires Windows 10/11 (64-bit) and administrator rights. WebView2 Runtime is required — pre-installed on Windows 11, download here for Windows 10.

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Features

Account Management

Store and manage unlimited D2R accounts in one place. Credentials are encrypted on-device using Windows DPAPI — they never leave your machine.

• Password auth — enter your Battle.net email and password; credentials are stored encrypted
• Token auth — capture a Battle.net auth token directly from within the app using the built-in login flow; tokens auto-refresh
• Steam support — launch accounts through the Steam installation with a single click; no Battle.net credentials needed

Multibox Launching

Launch multiple instances of D2R simultaneously with automatic conflict resolution.

• One-click launch from the Dashboard — each account gets its own --instanceN slot
• Automatic mutex bypass — Horadric Eye automatically kills the DiabloII_R mutex between launches, so Windows lets each new instance start without blocking the previous one
• Configurable per-account launch flags: -ns (no sound), -skiptobnet, -txt, -w, and any custom args

Window Management

Set up your multibox layout once and let Horadric Eye handle it every time.

• Assign a fixed position, size, and monitor per account
• Borderless mode per window — strip the title bar for a cleaner look
• Layouts — save named multi-account layouts (e.g. "2-box left/right") and launch all accounts in the layout with one button; each account's window is placed automatically
• Positions are re-applied after a brief delay to override D2R's own geometry restore on startup

Stats

• Live session timer per account while the game is running
• Cumulative playtime tracker — see total hours logged per account

Runeword Reference

A searchable, filterable table of every D2R runeword, built into the app.

• Filter by number of sockets, rune name, or base item type
• Shows rune order, required level, and item bases at a glance
• No internet connection required

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Screenshots

Coming soon

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Requirements

Requirement	Notes
Windows 10 / 11 (64-bit)
WebView2 Runtime	Pre-installed on Windows 11; download separately for Windows 10
Diablo II Resurrected	Battle.net or Steam installation
Administrator rights	Required for the mutex bypass that enables multiboxing

Note: The installer is self-contained — no separate .NET runtime installation required.

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Installation

1. Download HoradricEye-Setup-x.x.x.exe from Releases
2. Run the installer (UAC prompt will appear — admin required)
3. Launch Horadric Eye from the Start Menu or desktop shortcut

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Quick Start

1. Open Settings and set your D2R game path (Battle.net and/or Steam)
2. Go to Accounts → Add Account
3. Enter a label, your Battle.net email, and choose Password or Token auth
4. Back on the Dashboard, click Launch to start the game
5. Repeat for additional accounts — the mutex is cleared automatically between each launch

Token Capture

1. Edit an account → set Auth Method to Token → click Capture
2. A Battle.net login window opens inside the app
3. Log in and launch D2R from Battle.net — the token is read from the game process automatically

Layout Groups (Multibox)

1. Go to Layouts → New Group
2. Drag accounts onto the monitor preview and set their window positions
3. Click Launch All — accounts start sequentially with the correct window geometry applied

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Building from Source

Prerequisites

• .NET 8 SDK
• Node.js 18+ and npm

Steps

git clone https://github.com/loktow/HoradricEye.git
cd HoradricEye

cd frontend && npm install && cd ..

# Build (Release compiles frontend automatically)
dotnet build HoradricEye.sln -c Release

# Run
.\HoradricEye\bin\Release\net8.0-windows\HoradricEye.exe

Build the installer

# Publish self-contained win-x64 binary
dotnet publish HoradricEye\HoradricEye.csproj -c Release -r win-x64 -p:SelfContained=true -p:PublishSingleFile=true -p:DebugType=None --output publish\win-x64

# Compile installer (requires Inno Setup 6)
& "C:\Program Files (x86)\Inno Setup 6\ISCC.exe" installer\setup.iss

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Data & Privacy

All data is stored locally in %APPDATA%\HoradricEye\:

File	Contents
accounts.json	Account list — passwords and tokens are DPAPI-encrypted (Windows, CurrentUser scope)
config.json	App settings
layouts.json	Saved window layout groups
tools\handle64.exe	Auto-downloaded from Sysinternals on first launch (used for mutex bypass)

No data is transmitted to any external server.

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License

MIT