Choplifter! was first published by Creative Software and reviewed in May 1983. But this version is published from Brøderbund Software is newer.

Broderbund Software continues to diversify its product line by making four of its best selling titles available for the Commodore 64 computer. The programs are CHOPLIFTER!, SEAFOX, SERPENTINE, and DAVID'S MIDNIGHT MAGIC, all available in June.
Commander Aug 1983