- Primary Subject: Doom Lab-Grown Brain Cells Experiment
- Key Update: Scientists successfully connected living human neurons to a computer system that allowed them to interact with and control elements inside DOOM
- Status: Confirmed research experiment
- Last Verified: March 9, 2026
- Quick Answer: Scientists at Cortical Labs grew human neurons in a lab and connected them to a computer interface, allowing the cells to control actions in DOOM through electrical signals.
Scientists have managed to do something that sounds like it came straight out of science fiction: they made living human brain cells grown in a laboratory interact with and play the classic 1993 shooter DOOM.
The study was performed by Australian biotech firm Cortical Labs, a company exploring biological computing that blends living brain cells with traditional computer systems.
This device works like a bridge between biology and digital technology. It can send electrical signals into the neurons while simultaneously recording the electrical activity those cells produce.
Researchers connected the two systems by translating their signals, making it possible for the neurons to interact with a digital environment and shape what happened in the game.
How Were Brain Cells Able to Play DOOM?
To make this possible, the researchers needed a way to communicate game information to cells that obviously do not have eyes, ears, or any sensory organs.
The solution was to convert what happens in the game into electrical stimulation patterns. When certain events occurred on the screen (such as an enemy appearing in a specific direction), corresponding electrodes would stimulate parts of the neural culture.
The neurons responded by firing electrical spikes. These patterns of activity were then interpreted by the computer as commands inside the game.
Depending on how the neurons fired, the character in the game could move, rotate, or shoot. The process essentially created a feedback loop: the neurons received information about the environment, responded electrically, and those responses were translated into actions that changed what happened in the game world.
Were the Neurons Actually Good at the Game?
Although the neurons were able to interact with DOOM, they are far from skilled players.
Researchers say the cells behave similarly to someone who has never seen a computer game before.
The neural culture can move around, react to enemies, and occasionally fire weapons, but it makes plenty of mistakes and frequently fails to survive encounters in the game.
However, the important detail is that the neurons demonstrate signs of adapting their behavior. As the system continues running, the cells adjust their firing patterns in response to feedback.
This indicates a simple form of learning, where the biological network gradually improves its responses based on what happens in the simulated environment.
The DOOM experiment expands on earlier research by the same team, which in 2022 showed neurons grown in a dish learning to play the arcade game Pong.
In that earlier project, both mouse and human neurons were placed on an electrode array that delivered electrical feedback representing the movement of the ball in the game.
The cells learned to coordinate their responses so the paddle could return the ball. Pong worked well for early experiments because it has a very direct relationship between input and action.
When the ball moves upward, the paddle moves upward. DOOM is much more complicated. Even though the original game is technically a 2.5-dimensional shooter rather than a fully modern 3D title, it still involves navigating environments, responding to threats, and performing several different actions.
One of the main difficulties was turning that detailed visual environment into electrical signals that neurons could actually respond to.
Why Did Researchers Choose DOOM?
One reason the experiment captured so much attention is because DOOM has a long history as a kind of technological challenge.
For decades, engineers and hobbyists have tried to make the game run on unusual devices, from calculators to tiny electronic gadgets.
Demonstrating that a cluster of living neurons can interact with DOOM takes that tradition to an entirely new level. However, the experiment is not meant to prove that biological neurons are good at gaming.
Instead, the experiment shows that living neural networks can respond to complex digital environments and adapt accordingly.
Researchers believe this ability could eventually help create more efficient computing systems, since biological neurons can process information using far less energy than many modern AI systems.
While the idea may sound like entertainment or novelty, scientists are more interested in using biological computing systems to study how neural networks learn and process data.
Despite these possibilities, the work has also raised ethical questions. While the neurons used in these experiments are only small clusters of cells and are not considered conscious, the idea of using living human brain cells as components in computing systems makes many people uncomfortable.
Critics worry that as the technology develops further (especially if larger or more complex neural networks are grown in labs), questions about awareness and moral responsibility could become more complicated.
For now, scientists emphasize that these neuron cultures do not possess any form of consciousness and simply react to electrical stimulation in predictable ways.
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