1) Red Nukem is a variant of source port Eduke32 that supports Redneck Rampage, Redneck Rampage Rides Again, Duke Nukem 3D: Atomic Edition, Duke Nukem 64, NAM/NAPALM, and World War II GI:

Red Nukem Download Link

Red Nukem - Readme

Duke4 - Discord Channel

2) Raze supports all build engine games, meaning Duke3D and its expansions, Shadow Warrior and its expansions, Blood and its expansions, Redneck Rampage Series, Exhumed / Powerslave, World War II GI, and NAM:

Raze - Zdoom Page

Raze - Github Page

Raze - Official Wiki

Raze - GZDoom Wiki

Raze - Official Discord Channel

Zdoom Forum Thread - How to Make Build Games Work with Raze

Redneck Rampage Series: File and Folder Structure Needed to Run Them In Raze

only raze works and it does not support multiplayer. buildgdx no longer supports redneck rampage.

How to make it run on Rednukem.

Redneck Rampage and Redneck Rampage Rides Again

1.1. Open the Redneck Collection folder and copy these files to Rednukem folder:

DEMO1.DMO
DEMO2.DMO
DEMO3.DMO
REDNECK.RTS
REDNECK.GRP

1.2. Now go into AGAIN folder, rename and copy these files again to Rednukem folder:

DEMO1.DMO > DEMO4.DMO
DEMO2.DMO > DEMO5.DMO
REDNECK.GRP > rides.GRP

Suckin' Grits on Route 66: Creating a route66.grp

2.1. Follow this guide but DON'T rename the .MAP files and before create the .grp, open the USER66.CON with notepad and delete all Route66\ instances in definelevelname lines.

https : // www . jonhunt . com/redneck/other/gogrt66grp.txt

2.2. Again copy the new .grp file to Rednukem folder.

How to get music working:

3.1. Extract and convert to OGG the audio in REDNECK.gog and RRRAGAIN.gog, or the audios in Soundtracks.

3.2. Create two zip files with the OGG tracks inside, named track02-track09.ogg (Redneck Rampage) and track02-track10.ogg (Rides Again).

3.3. Put both zip files into a subdir called "music" in Rednukem folder.

3.3. Create two textfiles named redneck.def and rides.def.
Redneck.def should contain loadgrp music/redneck_music.zip and rides.def should contain loadgrp music/rides_music.zip
Put these also into the subdir "music".

3.4. Create another text file named redneck.grpinfo with the following code, and then copy to Rednukem folder.

grpinfo
{
name "Redneck Rampage"
defname "music/redneck.def"
size 141174222
crc 433699961
flags GAMEFLAG_RR
dependency 0
}

grpinfo
{
name "Redneck Rampage: Rides Again"
defname "music/rides.def"
size 191798609
crc-1786767162
flags GAMEFLAG_RRRA
dependency 0
}
grpinfo
{
name "Suckin' Grits on Route 66"
scriptname "game66.con"
defname "music/redneck.def"
size 18212318
crc-1860708818
flags GAMEFLAG_RR
dependency 433699961
}

OBS: the Suckin' Grits size and crc have to be adjusted, so after you first start rednukem (with all the grp and rts files in the folder), it should be created a grpfiles.cache, open it with notepad and copy the first number (size) and the last number (crc) in route66.grp line.

OBS 2: Some demos are desynced and I don't know why.

OBS 3: I also don't know how to make the Cuss pack work, and being honest I don't even care to try out.

That's it, if you were successful all three games should appear when you open rednukem, if you are like me and use some launcher manager like Playnite put -gamegrp filnename.grp -nosetup in command line parameters for quick start.

Addendum

This is great mod for make the keys more visible, I highly recommend.

https : // forum.zdoom.org/viewtopic.php?t=67237

Just create a subdir named autoload in rednukem folder and put the file there, then checkmark the "enable autoload folder" in the launcher (See the image above).