Doom Is Now Playable Inside Another Copy Of Doom
One talented player has taken Doom modding to the next level by booting up the classic PC shooter within another copy of Doom. Legendary game developer id Software first launched the original Doom in 1993, where it helped pioneer the 3D first-person shooter genre alongside other retro titles like Quake. As one of the first major PC titles of the early 90s, both Doom and its 1994 sequel were instrumental in creating the PC modding community that continues to find new and imaginative ways to play popular video games to this day. Even now, Doom modders continue to reskin the groundbreaking title as a Legend of Zelda crossover or a tongue-in-cheek parody in which players “steal” NFTs with a camera.
Before all that, one popular challenge among Doom modders has been getting the game to run on all manner of devices — even those that aren’t known for playing video games at all. These unlikely Doom platforms have included potato-powered graphing calculators, over-the-counter pregnancy tests, an old-fashioned rotary phone, and even a single LEGO brick rigged to a tiny OLED video screen. Some modders have even managed to run Doom inside other video games like Minecraft and the retro-style 2017 platformer Sonic Mania — but few would think to try and play Doom within another copy of itself.
Related: DOOM Now Playable Using Rotary Phone as a Gamepad
At least, not until kgsws recently attempted to do exactly that, as demonstrated on a video posted to their YouTube channel (via PC Gamer). In this lengthy video, kgsws explains how they were able to run Doom within another copy of Doom by utilizing a code exploit in the original DOS version of Doom 2 to import a modded version of Doom’s source code. Kgsws even builds an in-game theater
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