If you're looking for a game that you can play for 20-30 minutes every day from now until the day you die then this may be it. But in reality you'll spend more like 2-3 24 hours a day growing your factory, even if you're not playing actively your mind will plan the next steps.

If you're looking for a game that you can play for 20-30 minutes every day from now until the day you die then this may be it. But in reality you'll spend more like [strike]2-3[/strike] 24 hours a day growing your factory, even if you're not playing actively your mind will plan the next steps.