S1MAPI 2.0.0

.NET Standard 2.1 This package targets .NET Standard 2.1. The package is compatible with this framework or higher. 
dotnet add package S1MAPI --version 2.0.0
                    


                    

                
NuGet\Install-Package S1MAPI -Version 2.0.0
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="S1MAPI" Version="2.0.0" />
For projects that support PackageReference, copy this XML node into the project file to reference the package. 
<PackageVersion Include="S1MAPI" Version="2.0.0" />
                    


                            Directory.Packages.props
                        

                    

                
<PackageReference Include="S1MAPI" />
                    


                            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 S1MAPI --version 2.0.0
                    


                    

                
#r "nuget: S1MAPI, 2.0.0"
#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 S1MAPI@2.0.0
#: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=S1MAPI&version=2.0.0
                    


                            Install as a Cake Addin
                        

                    

                
#tool nuget:?package=S1MAPI&version=2.0.0
                    


                            Install as a Cake Tool

S1MAPI - Schedule 1 Mapping API

S1MAPI is a mapping and construction library for Schedule 1 mods. Create procedural meshes, build structures, and load GLTF assets without asset bundles.

GitHub release GitHub stars

What S1MAPI Does

  • Procedural Meshes: Generate 3D shapes at runtime (boxes, spheres, cylinders, capsules)
  • Building Construction: Create buildings with walls, floors, roofs, windows, and furniture
  • GLTF Loading: Import external 3D models without external dependencies
  • Update Resilience: Works across game updates by avoiding Assembly-CSharp types

Installation

For Players

If a mod you want to use requires S1MAPI:

  1. Download the latest S1MAPI package from GitHub Releases or Thunderstore
  2. Extract the zip - it contains a UserLibs folder with both S1MAPI_Mono.dll and S1MAPI_Il2Cpp.dll
  3. Copy the correct DLL for your Steam branch to your game's UserLibs folder:
    • Regular Steam branch (default): Use S1MAPI_Il2Cpp.dll
    • Alternate Steam branch: Use S1MAPI_Mono.dll
  4. Launch the game - S1MAPI will load automatically with MelonLoader

To check your Steam branch: Right-click Schedule One in Steam → Properties → Betas. If it shows "None" or no selection, you're on the regular branch (use Il2Cpp).

For Developers

Clone the repository and build:

git clone https://github.com/ifBars/S1MAPI.git
cd S1MAPI
dotnet build -c Mono   # For Mono builds
dotnet build -c Il2cpp # For IL2CPP builds

Requirements

  • Game: Schedule 1
  • Mod Loader: MelonLoader 0.7.0+

Learn More

Relationship to S1API

S1MAPI and S1API are complementary:

  • S1MAPI: Mesh construction, building generation, GLTF loading (no game dependencies)
  • S1API: Game component wrappers, entity management, quests (wraps game types)

Contributing

Contributions are welcome! See Contributing Guide for guidelines.

License

GNU GPL v3 License - see LICENSE file.

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 netcoreapp3.0 was computed.  netcoreapp3.1 was computed. 
.NET Standard netstandard2.1 is compatible. 
MonoAndroid monoandroid was computed. 
MonoMac monomac was computed. 
MonoTouch monotouch was computed. 
Tizen 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
2.0.0 89 5/11/2026
1.0.0 164 1/8/2026