In the late 1980's there was a game for the Macintosh called Macplaymate. In a nutshell, make a cartoon lady climaxs as many times as possible. It was amusing for awhile, but it wasn't difficult to reach the end goal. It was interactive porn in black and white.

Sexy Maid is alot like that but take alot more skill. You don't need instruction, but I will tell you there are alot more erotic areas to explore than just the obvious ones. Also you get better toys as you progress. Explore every possible use for each toy too. Have Fun.