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Defold

Lightweight cross-platform engine backed by King

free Solo-dev friendly

Defold is a free, source-available game engine originally built by King (Candy Crush). Focused on 2D games with Lua scripting. Produces tiny binaries and runs smoothly on low-end devices — ideal for mobile and web games.

Highlights

  • + Extremely small build sizes — perfect for web and mobile
  • + Battle-tested in production by King games
  • + Simple Lua scripting with message-passing architecture
  • + Built-in hot reload and live device testing

Limitations

  • 3D support is minimal and experimental
  • Smaller community than Godot or Unity
  • Lua is less popular — fewer transferable skills

Platforms

Windows macOS Linux Web Mobile