As of the current year (they were born approximately a whole number of years from each other so assume these are their ages unless it's December)
Their ages are the same for most of the year anyway (except the World levels)
If 2 levels are the same age then the one from the earlier released game is older. If they are from the same game then the earlier released level is older. If they were released at the same time the level with the lower level number is older.
1. Main levels
Stereo Madness (12)
Back On Track (13)
Polargeist (14)
Dry Out (15)
Base After Base (15)
Cant Let Go (16)
Jumper (16)
Time Machine (17 but born in 1878)
Cycles (17)
xStep (17)
Clutterfunk (19)
Theory Of Everything (19)
Electroman Adventures (17)
Clubstep (17)
Electrodynamix (19)
Hexagon Force (19)
Blast Processing (17)
Theory Of Everything 2 (17)
Geometrical Dominator (17)
Deadlocked (19)
Fingerdash (19)
Dash (19)
2. Meltdown levels
The Seven Seas (17)
Viking Arena (20)
Airborne Robots (17)
3. Subzero levels
Press Start (19)
Nock Em (22)
Power Trip (21)
4. World levels:
Payload (8)
Beast Mode (8)
Machina (8)
Years (9)
Frontlines (10)
Space Pirates (9)
Striker (11)
Embers (9)
Round 1 (10)
Monster Dance Off (11)
5. The Challenge
15 (biological) but actually much older

YOU ARE READING
Geometry Dash Adventures
RandomInspiration: Geometry Dash Story Collection, A Day In The World Of Geometry Dash (deleted) and Geometry Dash Stupidity (deleted). Btw on the cover is Hexagon Force P.s. The stories are partly written by ChatGPT because I cannot write, but only p...