[sushi_78]

The idea is to let the hamster run semi-freely (you'll probably want to restrict them to one room), but you can certainly put out toys and tunnels for them. Some dwarfs in particular might struggle with a big open space, I know mine would be really traumatised if I tried to let her free roam. If you notice your hamster sticking close to the walls, hiding or even refusing to move, that's probably a sign they are frightened by the open space, and they might do better in a smaller play pen.