"Worms" was the brainchild of Andy Davidson, a then-unknown computer shop employee and fan of Amiga microcomputers since 1987, who began work on the project in 1990 for his own amusement under the name "Artillery" based on previous tank games from the 8-bit era using a Casio graphing calculator as an experimemt for his own amusement.Davidson later moved development of "Artillery" to the Amiga on August 1993, which allowed to expand his idea further, leading him on introducing new elements and a graphical style to distinguish his project from its spiritual predeccessors.