It depends on the age of your kids but i love to sit and play Nintendo with my daughter and also play Roblox with her, she loves creating outfits so i quite often join her to do this. Another thing we do together is go to the local park and collect stone and then walk up to the local stream and though them over the bridge into the water. This is a fun and cheap idea.

I forgot to mention bike rides. Once the kids reach the age they can bike, it’s a lovely activity to do as a family.
When I grew up, we would work together on large jigsaw puzzles. My son always loved jigsaw puzzles too and still does at age 21. It’s a nice bonding activity to do together.
We have quite a lot of games but the games that were and are played the most are Rummikub, memory games, Ludo, Monoply, Battleship, Pictionary, Uno, Exploding kittens, Shopping board game

When my kids were younger we did endless craft, drawing and painting. We went to park a lot and would bring picnic blankets and food and often brought other kids along or met at the park with friends. We would make bush walks with flash lights at dawn, which my kids loved. Another thing I did was organising get togethers with up to 8 mums and all their kids and we would sit in front of our house at the street, attracting neighbours and families in the street to join us. We all have fond memories of that.

I loved icing arrow root biccies and decorating them as faces as a kid! Memory unlocked!
I love cooking with my toddler. He loves making cakes and slices. For older kids our friends have a puzzle night with their kids. I look forward to the board game nights we’ll have as they get older.