Native Android app for Habitica
NativeScript for Android using v8
JUCE is an open-source cross-platform C++ application framework
A web-based IDE for HTML5 game development. Powered by Phaser
An MVVM & Databinding framework that can use C# and Lua
LÖVE is an awesome 2D game framework for Lua
Automation for iOS, Android, and Windows Apps
UNIX-like reverse engineering framework and command-line toolset
A cross-platform UI framework for .NET
Uber's cross-platform mobile architecture framework
Cross-platform framework for building truly native mobile apps
Pterodactyl® is a free, open-source game server management panel
Unity / XNA game patcher and plugin framework
A lightweight game server framework implemented with Actor Model
Cross platform toolkit for creative coding in C++
A beautiful, easy-to-use and ad-free comic and game client
A modern UI framework for Kotlin that makes building performant
MAME is a multi-purpose emulation framework
A Jetpack combined with the MVVM rapid development framework
A free and open source framework for building powerful 2D and 3D apps
Web Framework built on top of Qt, using the approach of Catalyst
SkiaSharp is a cross-platform 2D graphics API for .NET platforms
Classic modular front-end UI framework
A cross-platform framework using Vue.js
DreamFactory API Management Platform