Because the official version of Geometry Dash on Steam has since been updated to newer versions (like 2.2 and beyond), players looking for the "1.9 experience" typically use specialized or "GDPS" (Geometry Dash Private Server) to play the game as it existed during that era. Key Features of the 1.9 Update

: Go to the 1.9 GDPS Download Page to find the latest version (currently u9.0.4).

: New block designs allowed creators to give their levels a "3D" aesthetic for the first time.

: Users could finally create accounts to save and sync progress across devices. How to Download Geometry Dash 1.9 for PC