To get all achievements you need around 1,5 hours.

To get all achievements you need around 10 hours.

To get all achievements in basic game you need around 10-15 hours. To get them all you need to buy 3 DLCs which adds 20-30 hours.

To get all achievements you need around 30-35 hours.

To get all achievements you need around 40-50 hours.

To get all achievements you need around 80 hours. Unfortunately to get all achievements you need to buy DLC which adds 20-30 hours.

To get all achievements you need around 10-15 hours.

To get all achievements you need around 25-30 hours.

To get all achievements you need around 45-55 hours.

To get all achievements you need around 15-20 hours.