I suppose it seems inevitable in retrospect. Just last week "decision game" Zero Escape: Zero Time Dilemma launched on PC alongside its 3DS release, and now this week comes news that its two predecessors 999: Nine Persons, Nine Hours, Nine Doors and Zero Escape: Virtue's Last Reward are both being ported to PC.
Or at least, I'm guessing they are. Technically the news from Anime Expo 2016 is simply that the games are coming to "other platforms", but I'm going to make the risky decision to say that this means they'll be coming to PC.
The horror trilogy is a visual novel with room escape puzzles which puts its cast of attractive teens into life-or-death situations and forces them to make horrible decisions about the lives of equally trapped peers. Developers Chunsoft showed a clip of the first game's port at the show, while its sequel's transition was confirmed via a less exciting presentation slide.
Chunsoft have been bringing a lot of their games to Steam of late, though Zero Escape is the first to be released at launch rather than months or years later. Other recent arrivals on Steam include the popular Danganronpa series, and RPG Mystery Chronicle: One Way Heroics is due later this summer.