Free and Open-Source Gaming

I've used it to play Doomlings with some friends across the country. Pretty straightforward to set up custom cards and layouts. The UI is sparse, but has what you need.

As a virtual environment it's unobtrusive and allows the actual game you're trying to pay to be front of mind.

As a piece of interactive media there are some times that it lags or the physics is a bit clunky.

I've not used the proprietary competitors, so my comparison is just with playing the game in person. It's free though so worth just trying it out.