If you're open to board games, not just video games, here is a list of cooperative board games listed at BoardGameGeek that are categorized as children's games

If you're open to board games, not just video games, here is a list of cooperative board games listed at BoardGameGeek that are categorized as children's games and are sorted by popularity: https://boardgamegeek.com/search/boardgame?advsearch=1&sort=rank&propertyids%5B0%5D=1041&propertyids%5B1%5D=2023 https://boardgamegeek.com/search/boardgame?advsearch=1&sort=... And here is a list of co-op board games that are not categorized as children's games but have complexity ratings of 1.7 or less: https://boardgamegeek.com/search/boardgame?advsearch=1&sort=rank&propertyids%5B0%5D=2023&floatrange%5Bavgweight%5D%5Bmax%5D=1.7 https://boardgamegeek.com/search/boardgame?advsearch=1&sort=... I chose 1.7 because one of my favorite co-op board game for young children is Ghost Fightin' Treasure Hunters (out of print), which has a complexity rating of 1.63. What's nice about filtering board games based on complexity ratings is that a parent can increase the complexity rating for their search as their children get older. Not all games with low complexity ratings are suitable for children, but BoardGameGeek also provides two suggested minimum ages for each game: one from the publisher and one from BoardGameGeek users.