Construct is an HTML5-based 2D video game engine developed by Scirra Ltd. It is aimed primarily at non-programmers, allowing quick creation of games through visual programming. First released as a GPL-licensed DirectX 9 game engine for Microsoft Windows with Python programming on October 27, 2007, it later became proprietary software with Construct 2, as well as switching its API technology from DirectX to NW.js and HTML5, as well as removing Python and adding JavaScript support and its plugin SDK in 2012, and eventually switched to a subscription-based model as a web app.