Castellion
***
This customarily-convoluted tile-laying gravity puzzle looked like it was going to be the runt of the Oniverse litter, and I'm only on the fence because it's more distinctive than Urbion and my five-year-old likes it. As with Sylvion, the expansions are equivalent to difficulty modes rather than bolt-on modules, but faster and trickier. This probably makes it the better game, but it feels too boxed in. I'd rather play Carcassonne against myself, where you get to build things larger than 6 x 6.
