Roller Coaster Tycoon is a classic game that holds a great place in the "just for fun" books of mine.
Anyway, the best feature of this game - hands down - is the Roller Coaster editor, where you design a roller coaster from the ground up.
And they can go up a long way. One of my favourite creations, a Giga Coaster, was 365ft high, but apparently it would have killed any occupant that went on it, so i never used it in a Theme Park.
The title sends you off course a bit really, because it isnt just a roller coasted game, its a complete theme park game.
You can make just about any type of ride, a water slide, a roller coaster, a merry go round, whatever you fancy really.
There are many theme parks that you have to take over in the game, and they are of varying difficulty. Once you have taken over one of these you will be set a challenge to do in a certain time limit. Whether that is "have a theme park worth £300000 is 2 years" or "Win the safest theme park award in 6 months".
They are all challenging and the whole game is a complete treat to play.
I still play it today, 9 years after release, and i own a PS3.
Now if that isn't saying something, i dont know what is.
Inspired.