Fantasy RPG Soulframe’s great advantage and possible curse is that it’s from the studio behind Warframe, the free-to-play sci-fi bonanza that has kept chugging away since 2013, amid increasingly rocky prospects for live service games in general. Warframe continues to pull a crowd, as was evident at this year’s somewhat dystopian Tennocon expo, in which there was a whole auditorium set aside to house the queue for a bunch of T-shirt stands. That popularity gives Soulframe leeway to experiment and…