One body, two players
Split Brain is an asymmetrical co-op puzzle game where you and a friend share a single character. One of you drives movement, the other sees what the movement player cannot and feeds them the information needed to get through. The game has to be played online, and both players need to talk to each other constantly — without that channel, the split control does not work. You start out waking in a cell with a headache, and the first thing you have to accept is that you are not alone in there. From that point on, everything is a matter of coordinating two sets of eyes and hands on one body.
How you get through Hexarture together
Hexarture's prison is made up of immersive, varied levels with their own mechanics and challenges. You will be walking into traps, blocking obstacles, and puzzle-platforming sections where the guide player has to read the environment and call out what the mover cannot see. Traps and hazards punish mistakes, so the information player needs to be clear and specific rather than vague, and the mover needs to trust the calls even when the screen looks safe. Alongside the physical obstacles there are levels built around escape-room style thinking — figuring out a mechanism, working out the right order of actions, and applying what you learned in earlier rooms.
The mystery underneath
The puzzle side is wrapped in a psychological thriller story. How you ended up sharing a body, whether you are stuck together for good, and what is really happening in Hexarture are the questions the game keeps putting in front of you. There are multiple endings to reach, so the choices and conclusions you and your partner arrive at together matter beyond the immediate room. The tone is dark, and the story asks you to face uncomfortable parts of the situation rather than just run for the exit.
Before you start
Line up a friend who will be on voice chat for the whole session — the game is built around two-way communication and does not work as a silent playthrough. Expect a linear, story-driven campaign where levels vary in mechanic and tone rather than a sandbox with free routing. Both players hold one of two different control roles, so you will be switching between leading and following as the situation demands, and both of you need to be patient with each other when a call goes wrong.