is difficult because the original developer, Persei Entertainment , is no longer active and the official site for the "registered version" is offline.
was originally distributed as shareware. Users could play the first few levels for free, but the "Full Version"—which included all 100 levels and the level editor—required a registration code sent by the developer upon payment. Why Codes Are Hard to Find Inactive Developer Digging Jim Registration Code
as shareware, a strategy that allowed players to download a limited version of the game for free. Initial Limitations is difficult because the original developer
