Hi guys, I`d love to know hoy you achieve a synth similar to the one you can hear on Luigi Madonna - Le Ly Land
https://www.youtube.com/watch?v=fBobnjahaO0

Another good example of the sound I`m after would be: https://www.youtube.com/watch?v=UV1Yk4_WdiU

Thanks in advance

So that's just a straight up Saw wave with a light chorus effect. On top of that is a lowpass filter. He added a little extra dip to the filter envelope though which gives it the shorter "ow" sound before the "wa" sound. Then he added a little reverb to it.
It sounds to me like he was using hardware so keep in mind that if you're using a computer, nothing you do is going to sound exactly like it because the synth will always sound too clean.