I've also been making a game engine based on MonoGame (and prime31/Nez), and one thing I recommend looking into is headless mode for both the game and the editor.
I started my engine in the first place because I want to get back into gamedev, but there's no way I'm going back to the convoluted editor-centered workflow of Unity/Godot. And with proper MVVM, you can get the game headless too, so agents can play without the UI and run thousands of simulations of the gameplay.
Overall, MVVM should be getting a renaissance because of how well it determines the layers and data flow for AI. I have multiple projects using it, and even in early 2025, models had almost no issues understanding my code and implementing new features. Now I set up MVVM-inspired headless architectures including for Swift or React Native projects and it works like a charm.
Overall, MVVM should be getting a renaissance because of how well it determines the layers and data flow for AI. I have multiple projects using it, and even in early 2025, models had almost no issues understanding my code and implementing new features. Now I set up MVVM-inspired headless architectures including for Swift or React Native projects and it works like a charm.