[legends2k]

Try ZeroBrane, a pretty good IDE for Lua with debugger.

As for object-orientation it takes Go or Rust-like approach where there isn't an explicit class construct but conventions; you can build your own or use libraries to get there. In fact Rust or Go are younger so Lua should be appreciated for doing this a lot earlier. Having rigid object-oriented-ness will generally make the language less usable with other paradigms like functional, imperative, generic, etc.

[corysama]

OO in Lua is the same as OO in classic JavaScript, just slightly more manual. In fact, in lots of ways Lua can be viewed as a cleaned up, simplified JS.