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doom.md

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 Doom is a legendary video [game](game.md) released in December [1993](1990s.md), perhaps the most famous video game of all time, the game that popularized the [first "person" shooter](first_person_shooter.md) genre and shocked by its at the time extremely advanced [3D](pseudo_3D.md) graphics (yes, **Doom is 3D**) and caused one of the biggest revolutions in video game history. It was made by [Id Software](id_software.md), most notably by [John Carmack](john_carmack.md) (graphics + engine programmer) and [John Romero](john_romero.md) (tool programmer + level designer). Doom is sadly [proprietary](proprietary.md), it was originally distributed as [shareware](shareware.md) (a gratis "demo" was available for playing and sharing with the option to buy a full version). However the game engine was later (1999) released as [free (as in freedom) software](free_software.md) under [GPL](gpl.md) which gave rise to many source [ports](port.md) and "improved" "[modern](modern.md)" engines (which however look like shit, the original looks by far the best, if you want to play Doom use Chocolate Doom or Crispy Doom, avoid anything with GPU rendering). The assets remain non-free but a completely free alternative is offered by the [Freedoom](freedoom.md) project that has created [free as in freedom](free_culture.md) asset replacements for the game. [Anarch](anarch.md) is an official [LRS](lrs.md) game inspired by Doom, completely in the [public domain](public_domain.md).
 
+Doom has a cool wiki at https://doomwiki.org.
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 { Great books about Doom I can recommend: *Masters of Doom* (about the development) and *Game Engine Black Book: Doom* (details about the engine internals). ~drummyfish }
 
 Partially thanks to the release of the engine under a [FOSS](foss.md) license and its relatively [suckless](suckless.md) design ([C](c.md) language, [software rendering](sw_rendering.md), ...), Doom has been [ported](port.md), both officially and unofficially, to a great number of platforms (e.g. [Gameboy Advance](gba.md), [PS1](playstation.md), even [SNES](snes.md)) and has become a kind of **de facto standard [benchmark](benchmark.md)** for computer platforms -- you will often hear the phrase: **"but does it run Doom?"** Porting a Doom to any platform has become kind of a [meme](meme.md), someone allegedly even ported it to a pregnancy test (though it didn't actually run on the test, it was really just a display). { Still [Anarch](anarch.md) may be even more portable than Doom :) ~drummyfish }