...then the Miggy Doom Clone (Hummmm, wonder who wrote it?)
Team17 created the best example of a Doom clone on the Amiga with Alien Breed 3D 2. Ironically, no Amiga could run it at a smooth frame rate. Top-end Amiga 1200's with 68060 accelerator cards enabled the game to be playable, but anything slower caused far too slow framerates. Doubly ironically, my Athlon 3700+ runs WinUAE so well that Alien Breed 3D 2 runs smoother than on any real Amiga.
I recall running ShapeShifter on my 68030 accelerated Amiga 1200. It was an almost perfect Mac emulator. Happily, Doom was released for Mac and ran quite well (given a small screen size). Had I ever bothered with an '060, it would have been full-screen playable.
The whole discussion is rather moot though, in this day and age. Mid-range x86 processors are several orders of magnitude faster than the home computers we all knew and loved. Even my phone is a good 100 times faster and has over 16000 times as much storage capacity as my first computer (Vic-20). The progress of technology has slowed somewhat in the past 2 years, but we are slowly entering an age where the holy grail (as far as I'm concerned) of realtime raytracing can be acheived on a machine costing less than £5K.
It's really this reason alone that leads me to question the viability of a new Amiga. Granted, the OS is solid and efficient, but that hasn't been a requirement of an OS for over 10 years. The main requirement is hardware and software support. If you can't run Excel, SAGE, SAP, PhotoShop, Final Cut or ProTools on it, what are you going to do with it? Any new Amiga is only ever going to enter the most hidden of niche markets.
POS, set-top boxes, pub quiz machines, information terminals and perhaps manufacturing automation control: these are the only things I can think of where a new Amiga could be put to use. I'd love to be proven wrong. Anything to let me get rid of Microsoft bloatware! :)