Developer Tools | Traffic Manager 11 for Cities: Skylines

IDE

TM:PE is written in C# and requires an IDE such as Visual Studio or Rider.

We use the latest language version and target .NET Framework 3.5 (what C:SL uses, sorry).

Rider — Remember to activate Roslyn Analyzers (why?)
Visual Studio — You'll need VS 2019 or later (why?) — You can perform code review directly from Visual studio. see Reviewing Pull Request Using Visual studio

Decompilers:

dnSpy

.NET browser and decompiler. Also useful for debugging. Requires manual install:

dnSpy-net472.zip : https://github.com/0xd4d/dnSpy/releases
Visual Studio plugin

ILSpy

.NET browser and decompiler. Requires manual installation:

dotPeek

.NET browser and decompiler. Requires manual install if not using Rider:

Standalone tool

Roslyn Clr Heap Allocation Analyzer

Roslyn based C# heap allocation diagnostic analyzer that can detect explicit and many implicit allocations like boxing, display classes a.k.a. closures, implicit delegate creations, etc. Requires manual installation:

ReflectionIT.Analyzer.Structs

Prevents use of in for anything other than readonly struct (why?).

Automatically installed via NuGet.