Corona (Corona SDK)
A free, cross-platform 2D game engine for building apps and games with Lua scripting.
Corona is a free, cross-platform 2D framework for building games and apps with the Lua scripting language. It lets developers write a single code base and publish to iOS, Android, Amazon Fire, macOS, Windows, and connected TVs including Apple TV, Fire TV, and Android TV, without maintaining separate projects.
The framework provides over 1000 built-in APIs covering sprite animation, audio, Box2D physics, object tweening, graphical filters, particle emitters, networking, texture management, and native UI elements. An interactive Simulator previews changes in real time, while Live Builds pushes updates to devices on the local network. Plugins from the Corona Marketplace extend the core with advertising, analytics, media, and hardware features, and Corona Native allows calling C/C++, Objective-C, Swift, or Java libraries from Lua. CoronaCards can embed Corona content within existing native apps.
Corona is aimed at indie developers and larger publishers working on mobile, desktop, and connected TV projects. The core framework is free with no fees or royalties; priority support is offered separately through the engineering team.
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