After some research I’ve concluded that this is a Viviparous lizard (Zootoca vivipara) also known as common lizard, in Swedish Skogsödla. There are only three species of lizards in Sweden and one of them has no legs. The common lizard can be up to 18 centimeters long. It lives in woodland with wet micro climate.
Do let me know if I got the species wrong, ha de Gött!