These games helped fuel the shareware model, which would drive PC gaming to greater relevance in the early to mid-1990s.

Datastorm became the first company to sue a vendor for infringement of its software using the shareware model.

Via the shareware model, Button, Fluegelman and Wallace became millionaires.

With the Kroz series, Apogee introduced the "episodic" shareware model that became the most popular incentive for "registering" (or buying) the game.

Mustang's first software products were sold using the shareware model.

It began as a traditional retail game developer, but later changed to a shareware model.

The public radio or shareware model would be a nice way around that.

Under the Apogee version of the shareware model (the "Apogee Model"), the first episode of a series was usually available as shareware.

However, this marketing model did not prove to be profitable enough, so Apogee decided to implement a variation on the shareware model.

Along with the name change, episodes one and three were switched, and with Apogee's shareware model, this meant that half of the game could be played for free.