Originally posted by Ladiesman^
I didn't invent the term "Stand alone expansion". Rogue Spear: Black Thorn says "Stand-alone expansion" on the box....that's where I got it from.....and that's pretty much how WCP:SO is, so I figured it was probably much the same....
Mechwarrior 2: Mercenaries - not an expansion, but a stand alone game, using the Mech2 engine.. which is why they took the name Mech2: Mercenaries. It doesn't check to see if you had Mechwarrior 2 installed.
R6: Covert Operations - not an expansion, used the same engine. They call it an extension, but that's not an expansion (which would be like R6: Urban Ops). You don't need R6 on the machine to play this one.
Mechwarrior 4: Mercenaries (coming up) is a stand-alone game using the Mech4 engine and set in the Mech4 universe, like its spiritual predecessor. It doesn't care whether you have Mech 4: Vengeance or not.
Wing Commander: Secret Ops - a stand-alone game using the WCP engine, set in the same universe (a few months after WCP's events), released in episodic format. It doesn't care whether you have WCP installed or not.
Asheron's Call: Dark Majesty - it doesn't check to see if you have the original AC installed. It doesn't care if you have an AC client previously installed, and its own stand-alone client uses the same universe of AC, even the same servers, with the exception that the client lets you access new areas that include housing. It also provides enhanced functionality over the previous clients. Not as good as an example as the above, but it's not an expansion. Just as Second Age was not an expansion for the original UO, nor was Renaissance an expansion for Second Age, or Lord Blackthorn's Revenge an expansion for Renaissance. They all use the same servers and the same universe, but each provided new features that the previous didn't have, and didn't need a previous client installed.