Lua is a lightweight, high-level, multi-paradigm programming language designed primarily for embedded use in applications.
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Game editor for the Solarus engine.
A simple program to compact LUA libraries.
a FOSS alternative to Unity,it might not be that similar but main goal is to create a user-friendly game engine coded on C++ and will use custom Lua-like language for scripting
A Script Extender for Star Wolves 3: Civil War