Open-source alternatives to Dem.net

An easy-to-use mapping library for use in web and desktop applications

Earth Lens, a Microsoft Garage project is an iOS iPad application that helps people and organizations quickly identify and classify objects in aerial imagery through the power of machine learning.

A geospatial library for .NET

Create GeoJSON from Entity Framework Spatial Data or WKT

Turf is a JavaScript and TypeScript geospatial analysis library and toolkit used for performing spatial analysis and geometric operations on GeoJSON data. It functions as a modular spatial engine that allows for the generation, manipulation, and classification of geographic datasets within web and node environments. The library provides a set of utility functions to programmatically create structured points, lines, and polygons. It enables the calculation of distances, areas, and geometric relationships between geographic coordinates, supporting both browser-based geospatial analysis and clie

Babylon.js is a JavaScript game engine and real-time graphics renderer designed for creating interactive three-dimensional visuals and applications. It functions as a web-based 3D framework and WebGL engine that enables the deployment of high-performance 3D content across various web platforms and devices. The project provides tools for web-based 3D game development, real-time graphics rendering, and the creation of browser-based interactive visualizations. It also supports the development of WebXR virtual and augmented reality experiences using standard web technologies. The framework cover

Ambient is a cross-platform multiplayer game engine and runtime environment developed in Rust. It provides a system for building and deploying high-performance games that run across web browsers and desktop platforms using WebAssembly and WebGPU. The project features a networked database that automatically replicates real-time state and components between servers and players. It utilizes WebAssembly sandboxes to isolate game logic, which prevents individual script crashes and allows for the secure execution of untrusted code. The framework includes a graphics system for high-fidelity 3D visu

HTML5 entity-component game engine

Axmol Engine – A Multi-platform Engine for Desktop, XBOX (UWP), WebAssembly and Mobile games. (a fork of Cocos2d-x-4.0)

High-performance Vulkan driver with automated resource management and execution

FXGL is a 2D game engine and development framework designed for Java and Kotlin. It provides a structured environment for building cross-platform desktop games, integrating a central game loop with an entity component system and a JavaFX-based scene graph for rendering. The toolkit distinguishes itself by providing a comprehensive suite of integrated libraries for game AI pathfinding, physics collision resolution, and multiplayer networking via TCP and UDP protocols. It includes specialized systems for adaptive user interface design using global stylesheets and a data-driven asset management

C++ library for geographical raster data analysis

An open source, cross-platform game engine designed for indie developers.

gSLICr: Real-time super-pixel segmentation

Isometric game engine. Open world, block/voxel based and sprite rendering.

This repository was moved to GitLab: https://gitlab.com/solarus-games/solarus

A free and open 3D game engine written in D.

Free/Libre Action Roleplaying Engine (engine only)

Game engine for making 2d games on iOS, macOS and tvOS, with practical examples and tutorials

Cocos2d for Web Browsers. Built using JavaScript.

cocos2d-iphone is a framework for 2D game development and the creation of two-dimensional graphical applications. It enables cross-platform development for iOS and macOS using Objective-C and high-performance graphics rendering. The project provides tools for building interactive environments, including the creation of orthogonal, isometric, or hexagonal tile-based maps. It supports the implementation of rigid body dynamics and collision detection through a 2D physics simulation system. The framework covers a broad range of capabilities, including sprite-based rendering, audio playback manag

Cocos2d-x is a high-performance C++ game development framework designed for building and deploying interactive applications across mobile, desktop, and web platforms. It functions as a cross-platform game engine that utilizes an entity-component system to manage object lifecycles, behaviors, and spatial relationships within a unified codebase. The engine is distinguished by its specialized 2D graphics rendering pipeline, which is optimized for hardware-accelerated performance when displaying sprites, particle effects, and skeletal animations. It provides developers with low-level access to gr

The Atomic Game Engine is a multi-platform 2D and 3D engine with a consistent API in C++, C#, JavaScript, and TypeScript