This tool breaks you out of any infinite loop in the main thread! No matter if its inside the GUI, Edit mode, play mode or build. Using this extension is very simple: just press CTRL + SHIFT + Q to throw a special exception into the main thread, which breaks out of any loop and gives the controll back to unity. It also pauses playmode. Then after you have fixed the problem you can just resume playmode without any issues.

Anything from unity version 2017 to current (2021) is supported. But only Windows (if you can help me get user input that bypasses unitys input system on non windows systems, please contact me aevus.sm@gmail.com). 

For up to date info see the forum thread.

If you have any questions, send me an email or ask it in the forum thread.