Why is this "installation failed" error appearing? Newer versions of Android 14 or 16 might not work.

The minimum SDK is Android 4.0 (Ice Cream Sandwich) and the target SDK is 4.1 (Jelly Bean).

GD Delta Released

GD Delta Trailer

GD Course Vintage (Unleashed) has Released

GD Course Vintage resourses Leak

Geometry Dash Delta

I've recently been working on the 2.2.12 course for version 2.11 (2017) because I was playing Dandy's World and Plants vs. Zombies 1 and 2. I'm bringing this version only for this game.

Jetpack mode is exclusive to Veva

GD Delta All Levels and Coins + Extra Level!.

Level 2 Revealed

GD Course Vintage