Operation: Inner Space

Operation: Inner Space is a PC game released in 1994 by Software Dynamics for Windows computers. The shareware version is a 14-day trial with most features enabled. After 14 days, many of these features are disabled (for example, saving or loading games), and the player can only use one ship. Registration not only prevents this, but enables a new feature the Ship Factory, which allows the player to make and customize ships. A near-full shareware edition was distributed as part of the cover CD in Issue 8 of Computer Life magazine (December 1995).