[Raion]

Just a thread of games we've ported to IRIX, or tested from nekoware or other projects of the past, and that work:

FPS:

ChocolateDoom 1.7.0 (needs SDL1) 
Darkplaces (Quake Engine)

I'll add more as I figure out what does and doesn't work! Feel free to add.

[Raion]

Xenoware has Chocolate Doom 2.3.0, includes Heretic, Hexen and Strife, and works well.

Quakespasm appears to work well too, after fixes applied by Aurxenon and me. That should be released soonish!

I have a VBA port but some stuff is still buggy on it, still working on that.

[kubaslonka]

Xenoware has Chocolate Doom 2.3.0, includes Heretic, Hexen and Strife, and works well.

Quakespasm appears to work well too, after fixes applied by Aurxenon and me. That should be released soonish!

I have a VBA port but some stuff is still buggy on it, still working on that.

Do you know where to download that?

[Beta_vulgaris]

You can find SimCity for IRIX on the Archive, also other UNIX systems, based on TCL.