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Build Game UI Without the Pain: Gum Layout Tool for .NET | .NET Game Development

Microsoft Developer (Build) · Jun 11, 2026 · Product Launches

Gum is a standalone open-source layout tool for building .NET game UI that exports technology-agnostic XML files.

“the simplest way to explain it is that it's a layout tool that can produce XML files”

A Microsoft Build session demos Gum, an open-source standalone layout tool for arranging game UI in .NET/MonoGame projects that outputs framework-agnostic XML. It is a 2D indie game development tooling demo with no meaningful AI content, making it largely off-topic for an AI industry newsletter.

dotnet game-development ui-tooling open-source monogame

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