Catacomb, Commander Keen Cash, and the Leap That Led to Doom

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Catacomb, Commander Keen Cash, and the Leap That Led to Doom

https://retrohandhelds.gg/catacomb-commander-keen-cash-and-the-leap-that-led-to-doom/

Ever wonder how a modest dungeon‑crawling demo turned into the birth of modern FPSes? John Romero’s new mini‑doc pulls back the curtain on id Software’s “leap of faith” that took them from Catacomb 3‑D straight to Wolfenstein 3D and eventually Doom.

Romero, Carmack, Hall and Adrian chat about how Catacomb 3‑D stole a trick from an old graphics textbook—drawing multiple vertical pixel columns at once—to squeeze texture‑mapped walls onto a 1991 PC without choking the frame rate. That same hack sparked the first ever on‑screen health indicator (a cracked skull) and even early mouse support, long before DOS gamers bothered with a pointer.

The real kicker? Despite catapulting Commander Keen into ten‑times the cash flow of those early shooters, the team tossed the safe 2D platform money aside after an artist nearly fell out of his chair when a troll leapt at him. That “wow” moment convinced them to gamble on a full‑blown FPS, birthing Wolfenstein 3D and setting the stage for Doom.

Bottom line: id’s iconic legacy wasn’t just tech wizardry—it was a bold, almost reckless decision to chase immersion over guaranteed profit.