There are seven games that I know of that can be run stand-alone on an Amiga using the Quake engine (Most so called Total Conversions can't).
Multiplayer only, and only to be found in an obscure section of GameFront.com. Can still be found on Arc.org.
Chapter Honour (Demo)
Unused monster model, can replace Quake Shambler.
Extra maps - no longer available.
Hack And Slash
My updated version.
More details, screenshots and extra downloads.
Transfusion (old version)
Fails the registered Quake check, but borrowing gfx/pop.lmp from OpenQuartz solves that.
Several of them borrow parts from OpenQuartz but they do not use the entire ID1 drawer, unlike Half-Life/Turok/Left4Quake e.t.c.
If anyone knows of any more please let me know. Will update this with a lot more detail later... maybe.