MoonSharp
An interpreter for the Lua language, written entirely in C#
...Supports dumping/loading bytecode for obfuscation and quicker parsing at runtime. An embedded JSON parser (with no dependencies) to convert between JSON and Lua tables. Easy opt-out of Lua standard library modules to sandbox what scripts can access. Easy to use error handling (script errors are exceptions). Support for coroutines, including invocation of coroutines as C# iterators.