Murder is an open-source, pixel-art–focused, entity-component-system (ECS) game engine built on top of FNA (a reimplementation of MonoGame). The engine aims to give developers a solid, flexible foundation for building 2D games with a retro/pixel-art aesthetic, while leaning into modern ECS architecture to separate data (components) from behavior (systems). Because Murder is in active development and still relatively young, the authors warn that breaking changes are possible — but this also...