Valve has already committed to the Steam Frame launch sometime this summer, and a fresh clue has just appeared. Portal 2 just got given its Steam Frame compatibility rating, which shows the classic Valve puzzler is rated as Playable. This rating is surprising, as Portal 2 has long been a favorite for VR gamers. However, Valve cites the game’s lack of support for the Steam Frame’s native resolution as the main reason for it only getting a Playable rating.

 With an official Steam Frame compatibility rating of “Playable,” Portal 2 misses out on being Verified on the standalone VR headset.  PCGamesN