Star Wars - Dark Forces [LucasArts]
 

Doom, the game that took Wolf3D and made First Person Shooters what they are, and Dark Forces (I think that's its name) the Lucas Arts FPS based on the Star Wars Galaxy and eventually spawning the Jedi Knight series.

They are both still sold!

LOL!!!!

dark forces is up for download on CGA so try there

Take the sourcecode from Doom, which is released for free by their developers, and compile it. You'll have yourself a free Doom, and legal too :max:

Source code does not contain any media files or content it is jus tthe engine. If you compile it you can make your own levels if you also make the sprites, textures, sounds, etc. Only then will you have a complete game.

Dark Forces is no longer being sold and is in fact abandoned.

So it's the wad-files that you have to pay for?

today yes.

Whole .wad format, or just the contents of the ID-software games that uses that?

The contents. You pay for the levels and such.