
On 12 December 2017, Topala announced a third spin-off game titled Geometry Dash SubZero, which was released on 21 December 2017. The creator of a given level, its players, and the game's moderators can influence this decision. The difficulty setting is determined by Topala.

Changes after the verification will render it unverified. The player must complete their level with all coins in normal mode in order to ensure that it is possible to beat before it can be uploaded. The game also features the ability to upload and download user-created levels, however this is not possible in Geometry Dash Lite or the spin-off games. A level cannot be officially completed on practice mode, though completion can lead to certain rewards like icons. Each game in the series has a practice mode that can be used for any level which allows the player to restart at manually or automatically placed checkpoints instead of the very beginning. Players may also utilize a shop, where they can spend an in-game currency called 'mana orbs', collected through completing levels.

Players can also earn achievements which may be exchanged for rewards like icons or colors. Players can play the levels in any order, except for Demon difficulty levels, and the Challenge. The difficulties are Auto, Easy, Normal, Hard, Harder, Insane, And Demon. Levels are classified by difficulty, and each difficulty gives a certain number of stars. Each level grants rewards upon completion and contain 3 secret coins, which are used to unlock the three locked levels. There are 21 official levels in the full version of Geometry Dash, 18 of which are unlocked from the start. The behavior of these modes can be changed further, such as reversing the game view or adding a second player-character. The vehicle the character takes is changed by seven portals, each of which is a different color. The player-character can take up to seven separate forms, which behave differently with each interaction. If the player crashes into an obstacle, they will have to start over from the beginning. The objective of the game is to complete a level by reaching its end. The timing and rhythm of the in-game music are key parts of the game, often in relation to each other. Users cannot control the speed at which the icon is moving.

The player can hold down jump to constantly interact with certain vehicles. Geometry Dash uses a touchscreen, keyboard, mouse or controller (depending on the platform) to control different vehicles that react when a player uses the jump function by either pressing on the screen on touchscreen devices, pressing the spacebar or up arrow on a keyboard, left-clicking with the mouse, or pressing A on the controller.
