This may well be a short lived entry, but The Final Matrix was a ZX Spectrum and Amstrad CPC title released by Gremlin Graphics back in 1987.
However, Zzap Italia reviewed the game and stated that a C64 version was one of the formats to be available too. There is no other evidence that a conversion was started though.
Was this true, or a cock up in the format details?
Contributions: Fabrizio Bartoloni
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The game was made available on Amstrad CPC as well (see Mobygames entry), no mention anywhere else of a C64 version
Thanks Fabrizio, updating now quickly :)