Annual charity fundraising event Jingle Jam returns on December 1st for a fortnight of entertainment, uniting the world’s best games, creators, and their communities to help make the world the best place it can be for children and young people. Today, Jingle Jam has revealed the first two additions to this year’s Games Collection lineup: Secret Mode’s viral co-op hit Chained Together and Fireshine Games’ open-world survival crafting game Len’s Island.