Defold is a free and source-available game engine with a focus on high-performance. It uses Lua, a scripting language, and allows you to create games for desktop, mobile, web, and console platforms.
A quick and easy way to find out the GPU and CPU memory usage of your Defold game on HTML5 platform
DefArc is an Arcweave runtime for Defold, a toolset to easily create branching, interactive narratives in your games! Underneath it is a JSON parser and helper module for branching, interactive or linear conversation or any data you can create in Arcweave for Defold game engine (Lua)
The FSM plugin for Defold to describe states like Playmaker in Unity with predefined actions