Slant - 113 Best 2D game engines as of 2024

For the purpose of this question, a "2D game engine" is defined as a framework for managing game state and behavior, integrated with 2D-specific middleware (at minimum, a rendering engine). This is based on Wikipedia's definition of a game engine, specialized to 2D while taking note of the second paragraph: A game engine is the software, i.e. some algorithms, solely responsible for the game mechan