Without prior notice, “Duke Nukem 3D: 20th Anniversary World Tour” was recently removed from Steam. The move has since caused some fans to wonder if this could be hinting at an upcoming sequel.

On Tuesday, someone noticed the disappearance of “Duke Nukem 3D: World Tour” from Steam and shared this bit over Reddit, causing many fans to voice their disappointment over the unexpected move. Some got upset knowing that this is already the third “Duke Nukem 3D” game that was pulled from Steam. The first one was the original release, and the second one was “Duke Nukem 3D: Megaton Edition.”

One Redditor also pointed out that Gearbox’s decision to remove “Duke Nukem 3D: World Tour” from Steam doesn’t make sense. “This makes no sense to pull the only legal way to buy a copy of the game,” Redditor Etania wrote before noting that the PlayStation 4 and Xbox One versions of the game are fortunately still available elsewhere.

One fan suspects that this move could be a hint at a new installment. “It probably means a new version is coming, they’ve done this twice already,” a Redditor with the handle TopBadge commented.

Meanwhile, another fan made the shocking discovery that Gearbox may have pulled “World Tour” from Steam because it was slapped with a DMCA (Digital Millennium Copyright Act) claim. After the fan brought this up on Twitter, Gearbox responded that it is currently “working to get this situation resolved as quickly as possible.”

While Gearbox is busy sorting things out, interested players can, for now, obtain their copy of “Duke Nukem 3D: 20th Anniversary World Tour” from the PlayStation Store, Xbox Store or Microsoft Store. After all, heading to Steam’s product page for the game only redirects players to Steam’s storefront.