Fantasy Grounds is virtual tabletop RPG software, for doing things like playing D&D or Call of Cthulhu with friends over the internet. It's a desktop applicatio

Fantasy Grounds is virtual tabletop RPG software, for doing things like playing D&D or Call of Cthulhu with friends over the internet. It's a desktop application which all participants install, and the players' computers connect to the computer of the person running the game. It has features to handle various polyhedral dice and modifiers, character sheets and stats, maps, etc. A full discussion of FG or a comparison vs the browser-based competitor Roll20 would be off-topic, but the company behind FG officially supports Windows, Mac, and Linux. Their app is a Windows app on all platforms. For Linux, they test and document Wine, and I can confirm firsthand that it works. For Mac, I think Wine is involved too, but although they do have documentation about that case, I think most of FG's Mac users (and many of their Windows users) install it via Steam without having to care about Wine. They don't have a version packaged through Steam for Linux. This example may go away in 2019 or in an upcoming year: they're working on a rewrite to be based on Unity. But this isn't a case where they can just use Unity for the next game in a series. They have a long-standing product with a lot of features and users that shouldn't be broken in the transition, and a small staff that has other priorities alongside the rewrite. The product just happens to be a tool for gaming. So the rewrite has understandably been a slow years-long background effort.