For many purposes, Starlark[1] could be used as an alternative to Lua. It's also designed to be embedded, it's a very simple language, and has 3 implementations

For many purposes, Starlark[1] could be used as an alternative to Lua. It's also designed to be embedded, it's a very simple language, and has 3 implementations (in Java, in Go and in Rust). [1] https://github.com/bazelbuild/starlark https://github.com/bazelbuild/starlark