Top Open Source Apps for Game Development

Armory3D is an open-source 3D game engine focused on portability, minimal footprint, and performance, with full Blender integration.

Castle Game Engine is a free, open-source game engine for 3D and 2D games, with cross-platform support and a focus on Pascal programming.

Cocos Creator is a game development platform that offers tools for creating 2D and 3D games, and interactive experiences across multiple platforms.

Defold is a free, open-source game engine that allows developers to create and publish games for multiple platforms using a single codebase.

Fyrox is a free and open-source game engine written in Rust, offering a set of tools for creating 2D and 3D games with high performance.

GB Studio is a free and easy-to-use retro game creator for making Game Boy-style games with no programming knowledge required.

GDevelop is a no-code, open-source game engine that allows developers to create 2D games using an event-based system, without programming knowledge.

Godot is a free and open-source game engine that enables developers to create 2D and 3D games across multiple platforms.

microStudio is a free, online game engine that allows developers to create, learn, and share 2D games directly in the browser.

Nakama is a distributed server for social and realtime games and apps, offering a comprehensive suite of features for game developers and app creators.

Solarus is a lightweight, multiplatform, free and open-source 2D game engine with a graphical game editor and launcher, written in C++ with a Lua API.

Stride is a free and open-source cross-platform C# game engine suitable for creating 2D & 3D games, as well as interactive content for desktop and VR platforms.