Roller Coaster Tycoon 2

"This is one of the favourite games of my childhood. Scrap that, it's one of my favourite games at all. There's something in the micromanagement of an amusement park, in the designing of a new roller coaster, that glued me for hours at the chair, in front of the computer. The sound effects, the pixellated graphics, everything is perfect. I don't think I ever completed every scenario, but I can say with pride that I was able to manage the most difficult ones." - Abandonware DOS