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.