Specs are quantitative aspects of the option such as the price
Pros
Pro
Very long gameplay
This game constantly has something new to discover. Dozens of resources, research science, upgrade crafts, trade with strange new races... Then one day you get to launch a rocket into space only to find planets to settle on and continue your expansion.
The gameplay gets very slow after a while, but it's best not to reset until you have at least 100 to 130 kittens. I replay this game a lot, but I have come to use one of the many automation scripts out there to make the early game faster.