In the additive colors game (PrimaryColors) you use color lights to turn a black "stage" white. In the subtractive colors game you use color pigments to turn a white "canvas" black. If that is a similarity, it is the only one.
PrimaryColorsII is more difficult. It is not based on Tetris model. It is two dimensional. It does not have an obvious strategy. Also, it has a maximum possible score, which, when you reach it, you will know for sure that you have arrived.
What's new in version 1.6.0
ReleaseAugust 26, 2008
Date AddedDecember 31, 2007
Operating SystemsMac OS X 10.4 PPC, Macintosh, Mac OS X 10.3.9, Mac OS X 10.4 Intel, Mac OS X 10.3, Mac OS X 10.2