TWOFER #4: Aztec Challenge (Cosmi, 1982/1983)

Two completely different versions exist of this game. The Atari 400/800 version was made by Robert Tegel Bonifacio, and the Commodore 64 version was made by Paul Norman in 1983.

Robert Bonifacio's Aztec Challenge was converted for the VIC-20, apparently by himself in 1982, and for the Texas Instruments' TI-99/4A by "RKH" in 1983, but both were released by Cosmi.

Paul Norman's Aztec Challenge was unofficially remade for the Commodore Amiga in 1993 by Christian Blaha and Ard Joosse of Bignonia, and a more recent port for the Atari 2600 by Simon Quernhorst was released in 2006 as "A-VCS-tec Challenge".
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