#5
Jigsaw puzzles are cozy by design. There is no skill curve, no failure state, no enemy. You pick up pieces and the picture slowly appears. Jigsaw Puzzle Dreams understands this and does not overcomplicate it. It is also the entry on this list most likely to work as a shared activity without much setup. My wife and I have done physical jigsaws together on evenings when neither of us wants a screen, and this scratches a similar itch when the table is covered in something else. The puzzle variety is decent for a free game. It will not replace a 1000-piece physical puzzle, but it is a genuinely relaxing thirty minutes any time you need one.