If you want to get into Geometry Dash you should play this game now. So far GD World have the most content included in comparison to any other free versions of Geometry Dash. There are tons of achievement to unlock, tons of icons, and tons of level to play. At first you can only play a few short original levels but once you finish them you gain access to a lot of features. You'll be able to play a daily level which resets every day, weekly demon and a huge variety of community-made levels under the featured tab. The game has the lowest learning curve in the game so if you're new to Geometry Dash just give it a try.