This War of Mine: Final Cut

This achievement requires you to collect and secure all of the artifacts in one playthrough.

Make sure you secure all the artifacts from Anja'a home before moving, this includes the strangers items in his backpack. Helping the neighbor (at the "neighbours house" at night) with 1 meat and 6 fuel will give you the record collection. There are also 2 artifacts at the "Samuel Institute".

On the days where the Museum ceiling falls/ starts to break, it allows you to secure new artifacts for your collection and you have to reinforce the ceiling supports with 5 components and 3 wood each before you can secure the artifacts on the floor. As soon as i collected the last museum piece on day 18 the achievement popped. Looking at the "main collection" (the truck/ warehouse on the ground floor of the museum) I had aquired 41 pieces when the achievement popped.