Hollowbound

Two-player co-op

Hollowbound is a PC co-op puzzle adventure for exactly two players. A knight and a princess wake up separated in the dungeons beneath a dark castle, trapped and bound to each other. You play online through a Steam lobby, using an invite or join code, and can call out clues with built-in voice chat.

Puzzles split between players

Each puzzle divides what the two players can see and do. One might find a clue, such as a scribbled note, a wall symbol or a glowing rune, while the other is beside the lever, valve or pressure plate that responds to it. You have to describe what you see and talk through the solution; neither player can solve the puzzles alone.