No Man's Sky: Users Reporting PC Launch Day Problems

No Man's Sky launched today, August 12, on PC, but many users have begun reporting that this version of the game is plagued with performance issues and is preventing some players from even playing the game.
Dozens of players on the No Man's Sky subreddit, as well as on the game's Steam community page, have posted about issues they have encountered with the game so far. Many players have reported poor performance issues and stuttering, while others have reported they are unable to launch the game