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... With its own active Reddit thread and booming fan base, the first-person shooter simulation game requires players to slay their opponents as they traverse through its universe. Previous iterations of the game featured pixelated rendering, while newer versions show more complex characters and landscapes. But translating a game made for human eyes was a challenge no matter the pixels.

"Doom is chaos. It's 3D. It has enemies. It needs to explore its environment and it's hard," Cortical Labs said. "To bridge that gap, we needed to translate the digital world of Doom into the biological language of neurons, which is electricity." ...