After being in the number one slot of the Steam “Top Sellers” list since its launch on October 28, Call of Duty: Modern Warfare 2 has been dethroned not by one game, but two games. The number two game is currently Warhammer 40,000: Darktide, which came out on November 30 to a generally warm reception. And the number one game came out today, and that game is The Callisto Protocol. And if you’re wondering how good the PC version, well only 36 percent of over 6,000 Steam user reviews are positive, giving the game a “Mostly Negative” rating. That said, while it seems most that are playing it on PC aren’t enjoying it, largely due to the plethora of performance issues, this isn’t stopping it from selling. It’s been in the number one spot – ahead of the aforementioned pair of games, and Marvel’s Midnight Suns and Need for Speed Unbound rounding out the top five – for the entire day.