HaxeFlixel

SDL

libsdl-org/SDL

Popular

Low-level cross-platform layer for windowing, input, audio and graphics; SDL3 adds a modern GPU API.

raylib

raysan5/raylib

Popular

Simple, dependency-free C library for games, with bindings for 60+ languages.

MonoGame

MonoGame/MonoGame

C# framework and XNA successor behind hits like Stardew Valley and Celeste.

LÖVE

love2d/love

Lua 2D game framework with a tiny, friendly API; a favorite for game jams and indie games.

libGDX

libgdx/libgdx

Java/Kotlin cross-platform game framework targeting desktop, Android, iOS and web.

Pygame

pygame/pygame

Popular

Classic Python library for 2D games built on SDL, widely used for learning game programming.

pygame-ce

pygame-community/pygame-ce

Rising

Actively developed community fork of Pygame with faster releases, SDL updates and new APIs.

SFML

SFML/SFML

Simple, object-oriented C++ multimedia library for 2D games; SFML 3 modernized the API.

Ebitengine

hajimehoshi/ebiten

Dead-simple 2D game engine for Go that ships to desktop, mobile, web and Nintendo Switch.