Rentware was a term coined in the days following the release of Spore, a critically acclaimed A title that shipped with SecuROM, a copyright protection program that limits what you can do with a game you purchase and may potentially harm your computer.
The term rentware describes the new direction the
PC market has been going in, where buying a game does not
mean you are actually purchasing a video game anymore, but more so the rights to play
the game--as long as you are allowed to. For instance, if you do not get online every ten days for the game Spore, the game
will then lock itself out and you
will be prevented from playing it until reactivated, thus leaving you with a $50 coaster.