Is it possible to convert Duke Nukem 3D maps into doom?

[Dynamo]

As the title says...

Even a copy & paste with some errors (like the 3d floors) would be fine.

[jallamann]

Yes. By hand.

[Dynamo]

Yes. By hand.

You mean I have to re-do them from scratch? D:

[Enjay]

It's a long time since I tried it but Zdoom can actually load build engine maps and then I think you can use a console command (dumpmap I think) to save the map to a file. Someone else will have the details I'm sure.

[InsanityBringer]

I think older versions of zdoom can load build maps. Extract the needed .MAP, *.ART files, and PALETTE.DAT. Then, at the command line, load the maps with just plain -file, load the palette with -bpal, and load the directory containing the ART files with -art (DO NOT LOAD THE FILES DIRECTLY. LOAD THE DIRECTORY). At the console, do a dumpmap <wad file> <map file - .map extension>

[Dynamo]

I think older versions of zdoom can load build maps. Extract the needed .MAP, *.ART files, and PALETTE.DAT. Then, at the command line, load the maps with just plain -file, load the palette with -bpal, and load the directory containing the ART files with -art (DO NOT LOAD THE FILES DIRECTLY. LOAD THE DIRECTORY). At the console, do a dumpmap <wad file> <map file - .map extension>

Older versions of zdoom such as? I'm surprised the newer versions can't do it...

Anyways sorry, but I'm a complete noob when it comes to executing programs this way... Could you give me a more detailed guide on how to do this?

Also, I assume the duke 3d maps are in DUKE3D.grp?

[Vader]

I think so!
However, even if you find a way to convert the maps into Doom-format, it would be more or less useless, since almost all of the Duke3d maps (IIRC) use sectors/areas that are drawn on top of each other to create the illusion of room-over-room, wich the Doom-format and neither UDMF (I think) are capable of.
If you really want to be able to play the Duke maps in Doom, you would propably be better off just recreating them from scrach, keeping the limitations in mind... or just play Duke3d in the first place

[Remmirath]

CKeen, you can try ZDoom 2.0.63a. At least i've tried it yesterday and it worked. But things won't work, and sectors over sectors won't work either. Plus, the color palette is completely screwed. You can dump the map as Enjay said, but that'd be more than useless.