No its free unless you wanna unlock some extra moments like the first OL :), its not neccessay though the games are amazing even w/o the dlcs <3
Viewing post in Our Life: Now & Forever comments
It's on Steam (https://store.steampowered.com/app/1129190/Our_Life_Beginnings__Always/) or here on itch.io (https://gbpatch.itch.io/our-life). Enjoy!