"Doom" (1993) is a classic first-person shooter game that was originally developed for MS-DOS. Today, it can be run on modern PCs using a variety of methods, typically through the use of source ports or emulators that adapt the game to run on contemporary operating systems such as Windows 10, macOS, and Linux. Here are the general system requirements to play the original "Doom" on a modern PC: 1. **Operating System**: Windows 7 or newer, macOS, or Linux. (For Windows users, 32-bit or 64-bit editions are compatible). 2. **Processor**: Even the most basic modern processors will suffice, as "Doom" was originally designed for 386 and 486-era CPUs. 3. **Memory**: A minimal amount of RAM is required; even 128 MB of RAM will be plenty. 4. **Graphics Card**: Any modern integrated or dedicated GPU capable of 2D graphics should work. Compatibility with VGA graphics is required, which is a given for almost all graphics solutions today. 5. **Storage**: The original "Doom" requires very little storage space, with the full game being less than 20MB. 6. **Emulation or Source Port**: You will need a way to play the game on a modern OS, which could involve using a tool like DOSBox (a DOS emulator) or a source port. Source ports are modern game engine recreations that make the game run natively on modern operating systems. Some popular "Doom" source ports include GZDoom, Chocolate Doom, and PRBoom+. 7. **Input Devices**: A keyboard and mouse are standard, but many source ports also support modern gamepad/controllers. 8. **Original Game Files**: To run "Doom" on a modern PC, you will need the original game files, specifically the WAD files (e.g., DOOM.WAD or DOOM2.WAD), which contain the game's levels, sounds, and other assets. These can be obtained by legally purchasing the game from platforms like Steam or GOG.com. **Additional Notes**: - If you’re playing "Doom" via a source port, check the source port’s system requirements as they could be slightly higher than those of the original game. - Many source ports offer enhanced features such as higher screen resolutions, improved controls, and mod support; this can slightly increase the system requirements compared to running the game in its original form. - Multiplayer may require a stable broadband connection, especially for online play with modern source ports. - To ensure compliance with legal requirements, you should own a legitimate copy of "Doom" when using its WAD files with emulators or source ports. By modern standards, "Doom" (1993) is extremely lightweight, and virtually any contemporary PC should be able to run it without difficulty.