Not since the release of Myst way back in 1993 has a game felt as consequential to the puzzle genre as Blue Prince. And while it’s tough to compare the two–Myst’s enormous impact turned it into a monument of what PC gaming could be to the burgeoning market of personal computers–Blue Prince does feel like a watershed moment in a similar vein. It’s a game so dense with ideas, so captivating in its construction, and so smart in its execution that it feels likely to influence the genre for years to come.

At its heart is the mixing of the rogue-like elements, which continue to seep into every genre, with classic first-person puzzle construction. Your goal in Blue Prince is to explore the mysterious Mount Holly Manor to reach its hidden 46th room.

The caveat is that the mansion’s floorplan is constantly shifting; every time you open a door, you aren’t greeted with a new room, but given the choice between three different ones. You pick which room appears, and use its layout and orientation to plot your way north from the entrance hall to the Antechamber just outside of the fabled 46th room. Getting to the goal is a constantly rearranging puzzle unto itself, and that’s before you realize that you’ll need to discover the means to unlock the Antechamber.

But that’s just what’s visible on the surface of Blue Prince. It drives players to obsession by providing hours and hours and hours of riddles and puzzles, loose threads to pull on and fascinating developments to uncover. Those most dedicated Blue Prince sickos (like me) have pumped hundreds of hours into the game trying to unravel all its mysteries, and as of this writing, many remain unsolved–by anyone.

Blue Prince is something of a singular puzzle experience at the moment, but there are giants that have come before it, and many similar and fascinating executions on parallel ideas that serve as its contemporaries. Below, you’ll find a list of 18 games and franchises that can scratch your riddle-solving itch once you’ve decided to step away from Mount Holly Manor, many of which will burrow into your brain in the exact same way.