dxx-rebirth VS iortcw

And that's the first level of Descent. :) I literally just started a brand-new game yesterday of Descent. DX-Rebirth.

Find a remake of the game ported to a modern engine. https://www.dxx-rebirth.com/ appears to be a port of Descent 1 and 2 to the Source engine. It won't help with you running the 3DFX version, of course, but this might actually be better?

I loved this game. You can still play it with DXX Rebirth

I would look at DXX rebirth, https://www.dxx-rebirth.com even if you just want to add the expansions to your steam version, you should be able to use its instructions to add the levels to your version.

Descent 2 - so long since I last played any Descent game I forgot how the experience was, but hey there's a source port!

Or if you still want to play the originals, the DXX Rebirth mods also make it easy to play on modern computers!

https://github.com/iortcw/iortcw - iortcw (Civvie 11 used this in his review)

Return to Castle Wolfenstein can run mostly fine on modern hardware, but if it doesn't, there are two noteworthy source ports that can run the game: ioRTCW and RealRTCW. The former is simply gives the game more stability and tons of fixes while keeping the classic RTCW feel, whereas RealRTCW is a full overhaul of the base game, with higher-quality textures, new weapons, rebalanced gunplay, and other changes: https://github.com/iortcw/iortcw https://www.moddb.com/mods/realrtcw-realism-mod

Is this the right link? https://github.com/iortcw/iortcw/releases

Link: GitHub - iortcw/iortcw: Merge of ioquake3 features and fixes into RTCW code bases

And remember to check out the two open source projects called ET: Legacy and iortcw.

In the end, it feels to me that providing opposition to hostile business models is the only way forwards, even if piracy is notoriously bad in the industry and there is ample competition, so not doing DRM and even having parts of your project be open source is probably financial suicide, as evidenced by the occasional thread on /r/gamedev about someone having their game be essentially stolen and it being uploaded elsewhere and someone else getting profits from their hard work.

Linked, because it's actually pretty interesting:

[1] - https://github.com/iortcw/iortcw