MonoGame
monogame.netOne framework for creating powerful cross-platform games
Gamesgame-frameworkcross-platformopen-sourcegame-developmentcsharp2d-gamesindie-games

About
MonoGame is a free, open-source game development framework that enables developers to build cross-platform games from a single codebase. It is maintained by the MonoGame Foundation, a non-profit organization supported by community donations. The framework offers documentation, tutorials, and tools for both beginners and experienced game developers.
Problem
Developers need a single framework to build and deploy games across multiple platforms without paying royalties or licensing fees.
For
game developers building cross-platform games
How it works
Developers write their game code once using the MonoGame framework and can deploy it to multiple platforms, leveraging built-in tools for 2D/3D rendering, input, audio, and more.
Business model
free
Status
launched
Company
MonoGame Foundation