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Figure 1: Multimodal digital games used in learning environments of children.

3D printing technologies have been known for several decades and have been already used in arts, most often as accessories rather than as core material of a tangible installation art. We describe "Standing Humanity: 3D Yan Character" a collaborative and participative installation art based on 3D printing objects and we are analyzing participants' engagement and the playability of the installation. We analyze different types of interaction and conclude that 3D printing objects have a high potential to engage curiosity and open to interactions between visitors and the objects themselves. We finally suggest further investigations to explore 3D printing within the context of collaborative and interactive installation.