Doom is a first-person shooter, reigning the genre in 1993 and 1994. It revolutionised shooters as we know them today, and added some key features - switches, keys, puzzling maps, painful floors and none other than mindless killing - to give us an amazing game that's still popular today.
If you don't own a copy of Doom, you can grab the shareware copy here.
When you're ready for the real deal, hunt down the Doom Collector's Edition for 3 excellent Doom titles. (If you're in the US, try this link.)
Alternatively, you can grab the whole lot from Steam and get the Master Levels for Doom II as well.
Check out the discussion board and the chat channel to have a good, erm, chat.
ZDoom - an awesome source port for every classic Doom running, plus support for Heretic, Hexen, Strife and other titles on the same engine. Plus, this has an immense amount of new features on top of the classic Doom gameplay.
GZDoom - an OpenGL-enhanced version of ZDoom. Requires a much beefier machine to run - but it's definitely worth it!
Doomsday - an advanced source port which supports 3-D models in the MD2 format, as well as its own DMD proprietary format.
Multiplayer Source Ports
Zandronum - The finest way to play Doom in multiplayer. Forked from Skulltag, meaning it has a plethora of gametypes as well as many features from ZDoom.
Odamex - Another good multiplayer sourceport, Odamex focuses more on retaining classic gameplay with new ZDoom features.
Slade3 - A mashup of lump editor and map editor which is still in-progress, but supports the UDMF map format used in ZDoom.
Doom Builder - An extremely user-friendly map editor which supports a wide range of map formats, including the ZDoom-specific UDMF format, allowing for a lot of flexibility when modding.
eXtendable WAD editor - Not being updated any more, but even so, very easy to use and helps with replacing graphics in your PWADs, and even IWADs. Keep a backup copy, though. Can also edit various other games other than Doom.
List of editing tools - There are many more editing tools available for Doom and other id Tech 1 games; this entry on the ZDoom wiki has a good, long list of 'em.
Freedoom - this is meant to make the Doom engine free to the masses, for the purpose of playing mods. This isn't the full game; it is the engine without Doom's original assets. This makes a free WAD file that is
Copy.com - A piece of software designed to sync files to the cloud quickly and painlessly. This makes it the perfect place to put your WADs up for download. Please note that this is a referral link; by using it, you can get 10GB of space as opposed to 5GB - however, it also means I (Phlum) will also get 5GB extra space as well.
Please notify me of any additional links you want to see on this list!
Upload your art or submit it to our group in the correct folder. Please make sure to do this or your submission will be rejected.
All art is appreciated as long as it's to do with Doom or any related game!
Oh, and nothing too...questionable, let's say.
Basically, upload a deviation and put it in the Club's gallery - provide a couple of screenshots, perhaps an overview of the maps. Remember to upload it into the WADs folder.
Include a download link and say what tools you used! It would be nice to see what you used to make your WAD.
Also, you'll need to tell us which game it's for - Doom, Hexen, Strife, etc...
Anything that you've created for games and would like to share is greatly appreciated!
Upload a deviation showcasing your resource and make sure you submit it to the WADs folder! Also, tell us what your license is - we wouldn't want to sell your work without first getting permission or anything like that.
We accept every kind of resource - just as long as it's original. No sprite rips or anything like that, please - this is an art website, after all.
So there you have it. Thanks for visiting!