It's not exactly a low-cost build, but Tabletop Simulator has very acceptable RPG mods in the workshop, and is compatible with PC gaming VR gear if you've got a

It's not exactly a low-cost build, but Tabletop Simulator has very acceptable RPG mods in the workshop, and is compatible with PC gaming VR gear if you've got a bottomless budget. My gaming group has used TTS + Skype to regularly bring in a player who moved intercontinental and keep the campaign going.