MinecraftLauncherLib.Core 4.0.5

dotnet add package MinecraftLauncherLib.Core --version 4.0.5
                    
NuGet\Install-Package MinecraftLauncherLib.Core -Version 4.0.5
                    
This command is intended to be used within the Package Manager Console in Visual Studio, as it uses the NuGet module's version of Install-Package.
<PackageReference Include="MinecraftLauncherLib.Core" Version="4.0.5" />
                    
For projects that support PackageReference, copy this XML node into the project file to reference the package.
<PackageVersion Include="MinecraftLauncherLib.Core" Version="4.0.5" />
                    
Directory.Packages.props
<PackageReference Include="MinecraftLauncherLib.Core" />
                    
Project file
For projects that support Central Package Management (CPM), copy this XML node into the solution Directory.Packages.props file to version the package.
paket add MinecraftLauncherLib.Core --version 4.0.5
                    
#r "nuget: MinecraftLauncherLib.Core, 4.0.5"
                    
#r directive can be used in F# Interactive and Polyglot Notebooks. Copy this into the interactive tool or source code of the script to reference the package.
#:package MinecraftLauncherLib.Core@4.0.5
                    
#:package directive can be used in C# file-based apps starting in .NET 10 preview 4. Copy this into a .cs file before any lines of code to reference the package.
#addin nuget:?package=MinecraftLauncherLib.Core&version=4.0.5
                    
Install as a Cake Addin
#tool nuget:?package=MinecraftLauncherLib.Core&version=4.0.5
                    
Install as a Cake Tool

MinecraftLauncherLib.Core

Minecraft Launcher Library

<img src='./icon.png' width=128>

MinecraftLauncherLib.Core is a Minecraft launcher library for .NET
support all vanilla and mod versions (including Forge, Fabric, etc...)

Features

  • Authenticate with Microsoft Xbox account
  • Get vanilla versions and installed versions
  • Install vanilla versions
  • Launch any vanilla version (tested up to 1.21)
  • Launch Forge, Optifine, FabricMC, LiteLoader or any other custom version
  • Install Java runtime
  • Install LiteLoader, FabricMC
  • Launch with options (direct server connecting, screen resolution, JVM arguments)
  • Cross-platform (Windows, Linux, macOS)

Install

Install the MinecraftLauncherLib.Core Nuget package

QuickStart

Get All Versions

using MinecraftLauncherLib.Core;

var launcher = new MinecraftLauncher();
var versions = await launcher.GetAllVersionsAsync();
foreach (var version in versions)
{
    Console.WriteLine($"{version.Type} {version.Name}");
}

Launch the Game

using MinecraftLauncherLib.Core;
using MinecraftLauncherLib.Core.ProcessBuilder;

var launcher = new MinecraftLauncher();
var process = await launcher.InstallAndBuildProcessAsync("1.21", new MLaunchOption());
process.Start();

Launch the Game with Options

using MinecraftLauncherLib.Core;
using MinecraftLauncherLib.Core.Auth;
using MinecraftLauncherLib.Core.ProcessBuilder;

var path = new MinecraftPath("./my_game_dir");
var launcher = new MinecraftLauncher(path);
launcher.FileProgressChanged += (sender, args) =>
{
    Console.WriteLine($"Name: {args.Name}");
    Console.WriteLine($"Type: {args.EventType}");
    Console.WriteLine($"Total: {args.TotalTasks}");
    Console.WriteLine($"Progressed: {args.ProgressedTasks}");
};
launcher.ByteProgressChanged += (sender, args) =>
{
    Console.WriteLine($"{args.ProgressedBytes} bytes / {args.TotalBytes} bytes");
};

await launcher.InstallAsync("1.20.4");
var process = await launcher.BuildProcessAsync("1.20.4", new MLaunchOption
{
    Session = MSession.CreateOfflineSession("Gamer123"),
    MaximumRamMb = 4096
});
process.Start();

Example

Sample Launcher

Product Compatible and additional computed target framework versions.
.NET net5.0 was computed.  net5.0-windows was computed.  net6.0 was computed.  net6.0-android was computed.  net6.0-ios was computed.  net6.0-maccatalyst was computed.  net6.0-macos was computed.  net6.0-tvos was computed.  net6.0-windows was computed.  net7.0 was computed.  net7.0-android was computed.  net7.0-ios was computed.  net7.0-maccatalyst was computed.  net7.0-macos was computed.  net7.0-tvos was computed.  net7.0-windows was computed.  net8.0 was computed.  net8.0-android was computed.  net8.0-browser was computed.  net8.0-ios was computed.  net8.0-maccatalyst was computed.  net8.0-macos was computed.  net8.0-tvos was computed.  net8.0-windows was computed.  net9.0 was computed.  net9.0-android was computed.  net9.0-browser was computed.  net9.0-ios was computed.  net9.0-maccatalyst was computed.  net9.0-macos was computed.  net9.0-tvos was computed.  net9.0-windows was computed.  net10.0 was computed.  net10.0-android was computed.  net10.0-browser was computed.  net10.0-ios was computed.  net10.0-maccatalyst was computed.  net10.0-macos was computed.  net10.0-tvos was computed.  net10.0-windows was computed. 
.NET Core netcoreapp2.0 was computed.  netcoreapp2.1 was computed.  netcoreapp2.2 was computed.  netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.0 is compatible.  netstandard2.1 was computed. 
.NET Framework net461 was computed.  net462 was computed.  net463 was computed.  net47 was computed.  net471 was computed.  net472 was computed.  net48 was computed.  net481 was computed. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen tizen40 was computed.  tizen60 was computed. 
Xamarin.iOS xamarinios was computed. 
Xamarin.Mac xamarinmac was computed. 
Xamarin.TVOS xamarintvos was computed. 
Xamarin.WatchOS xamarinwatchos was computed. 
Compatible target framework(s)
Included target framework(s) (in package)
Learn more about Target Frameworks and .NET Standard.

NuGet packages

This package is not used by any NuGet packages.

GitHub repositories

This package is not used by any popular GitHub repositories.

Version Downloads Last Updated
4.0.5 215 10/6/2025