How does this compare to Journey?

[PhilGFriendly]

I'm tempted, but at the risk of cluttering my library with another game I'll never play after the first couple hours.

[matrixdll]

Outside the ambience, they're nothing like each other.
Journey is an atmospheric walking sim / exploration game, whereas Glyph is a [slightly bouncy] rolling ball collectathon, more focused on precision platforming, lots of airtime and tactical double jumping & gliding to reach further distances.