|Released||January 25, 2011|
Clockwork Squares is the fifteenth song in the Call of Duty: Black Ops - Zombies Soundtrack.
The song can also be heard in the Data Vault in Call of Duty: Black Ops III by cycling through the songs on the music player and selecting this. As well, in the campaign and Nightmares mission "Vengeance", Clockwork Squares can be heard playing through the speaker of a television in one of the houses the player must travel through.
It is available on iTunes or downloadable with Rezurrection.