There is a growing community of people playing UFS on Tabletop Simulator (TTS for short). Here you can find a few resources to help you get started.
HERE You can find the store page for the game itself. It goes on sale fairly often, so be sure to take advantage.
HERE You will find the mod that allows you to play UFS in the simulator. It was built by a user by the name of elsuave32.
And finally, HERE You can get a save file, that has everything laid out for easy deck building. It was made up by cetonis. Just past the files into
C:\Users\USERNAME\Documents\My Games\Tabletop Simulator\Saves
As of the Mortal Kombat release, TTS is up to date.