To completely immobilize bloons through pure cold requires this highly specialized building, capable of bringing bloon molecules to an absolute standstill over a wide area.
~ Official BMC description

The Zero Point Energy Machine is a Special Building that is required to research the Absolute Zero upgrade. It costs City cash23,000 to build, takes 36 hours to construct, and gives 500 XP once construction is complete. It consumes Lightning thing-040 and a 1x1 tile space. It requires Level 20 to unlock.

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