Thank you for your kind message! I've been thinking about another project for the 16k ZX Spectrum, but I know this one wouldn't fit in 16k. I stuck with the 16k machine for my ZX projects because assembly language programming is tedious and I thought the 16k machine was least likely to exhaust my patience or to allow feature creep. I'm not ruling out writing 48k games, which Chambers probably would be, but that's probably something for the more distant future. I still have a lot of DOS projects in my head!