Geometry Dash Subzero

Overview
Geometry Dash SubZero is a free ad-supported expansion app of Geometry Dash developed and published by Robtop Games and released on December 21, 2017 for iOS and Android, first being announced on December 12, 2017. It features 3 exclusive levels with features and triggers from the unreleased update 2.2, the game also has limited achievements, icons and collectibles.