Defold
Cross-platform editor and Lua game engineSource-available· verified Sep 2026
An editor and runtime built around game objects, components, collections, Lua scripting, and a cross-platform build pipeline.
Official siteReach for it when
- 2D games using Lua with an editor
- Teams targeting web, mobile, and desktop
Worth knowing
Free to use with source available under the Defold License. Its restrictions on selling the engine mean it is not an OSI-approved open-source license. Console publishing needs platform access and additional setup.