Sorry I honestly am a complete newbie here.

Are there any simulator programs for UFS where I can play against an AI/CPU or Computer controleld opponent?

Do any such program exist or is that possible at all with OCTGN?

And if so, then is it completely free to experiment and play with that I wouldn't have to invest and does not require any out-of-pocket costs?

What I would like to do is be able to experiment and test the waters with UFS first and see if I can get the hang of it before deciding whether if I would actually enjoy and like it enough to actually spend any actual money on it if that's possible.

I mean I've seen similar programs in the past made for the most popular tcgs and ccgs such as yugioh, magic the gathering and pokemon, so I've always wondered if anything like that exists and is also available for UFS.