I'm also switched from Camtasia to OBS. Why? Camtasia is hogging the system while recording, and the exported video is worse than the preview video while editing. OBS, or Open Brodcaster Software, is a software that designed for live streaming. I might trying the live streaming, but because my internet connection is slow, I think not. When I play GMOD, OBS records better than Camtasia. That's it, OBS better than Camtasia.
Where's the download of the game?