There's a few Duke Nukem source ports that are candidates for Nekoware II.
That being said, it's not a super high priority issue, so I would recommend this:
https://tudl1910.home.xs4all.nl/nekoware...ps3-mips4/
Get the SDL 1.2 binaries from here. All of them
Option 1: Harder, possibly requires GCC
Build RAZE:
https://github.com/coelckers/Raze
I would suggest following these directions when possible:
https://zdoom.org/wiki/Compile_ZDoom_on_Solaris
Option 2: Probably easier?
http://icculus.org/duke3d/ - use the SDL bins from Option 1 plus this source port.
The source ports that were originally attempted for SGI didn't have native Dmedia support, so it could be hit or miss. The SDL1.2 above built by Dexter1 is top notch.
If you have trouble, I can help you out tonight.
I'm the system admin of this site. Private security technician, licensed locksmith, hack of a c developer and vintage computer enthusiast.
https://contrib.irixnet.org/raion/ -- contributions and pieces that I'm working on currently.
https://codeberg.org/SolusRaion -- Code repos I control
Technical problems should be sent my way.