On Oct 19, 2016 2:57 PM, "Eric Duhamel" <ericxdu23@gmail.com> wrote:
> I've tried Freedoom with Vavoom and something called "Chocolate Doom" and was rather disappointed...

Maybe try PrBoom? IIRC that's what Rockbox's Doom port is based on, and that runs on MP3 players with 40 or 50MHz ARM CPUs.

Benson Mitchell