Roll20 is described as «is the free, easy way to play tabletop games (such as pen and paper RPGs) online with others. It»s completely web-based, so it runs right in your browser. It supports video and voice chat, background music, character sheets, a massive art library, and more!» and is a virtual tabletop in the games category. There are more than 25 games similar to Roll20 for a variety of platforms, including Online / Web-based, Windows, Mac, Linux and Self-Hosted solutions. The best alternative is MapTool, which is both free and Open Source. Other Roll20 like games are Fantasy Grounds, Astral Tabletop, Foundry Virtual Tabletop and Battlegrounds: RPG Edition.Roll20 alternatives are mainly Virtual Tabletops but may also be Role-playing Games. Filter by these if you want a narrower list of alternatives or looking for a specific functionality of Roll20.