# Lua SDK The [Lua](https://en.wikipedia.org/wiki/Lua) SDK is available in [all editions](https://tacview.net/features/comparison/) of Tacview. That means that anyone can write and/or run add-ons written by themselves and others in Lua. Find the Lua SDK at `C:\Program Files (x86)\Tacview\AddOns\` . Here you will find the files `Tacview Core Interface.txt` and `Tacview Main Interface.txt` containing the reference documentation for the API, as well as about a dozen tutorials and the source code of several add-ons included with Tacview. Find the source code of additional add-ons on our [GitHub](https://github.com/RaiaSoftwareInc/tacview.add-ons.lua). Even if you are programmimg in [C++/C#](/tacview/sdk/cpp-cs.md), this documentation will be helpful to you, because the APIs are basically identical. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://raia-software-inc.gitbook.io/tacview/sdk/lua-sdk.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.