Can you give me the names of 18+ levels on geometry dash

Sure! Here are some popular 18+ rated levels in Geometry Dash that are known for their difficulty and complexity:

**Sonic Wave** by Kiwan
**Bloodbath** by Riot
**Cataclysm** by Ggb0y
**Bloodlust** by Knobbelboy
**Silent Clubstep** by 0kk3
**Yatagarasu** by Reunomi
**The Golden Apple** by Hinds
**Ascended** by Zobros
**Omega** by Glitch
**The Nightmare** by Acheron
**God Eater** by Aquas
**Kinoshita** by Luminous
**Crimson Planet** by Fubuki
**Hyper Sonic** by ZenthicAlpha
**Tartarus** by Sly
**Stalemate** by Janjan
**Echosis** by Underswap
**Abyss of Darkness** by Epicmafia

Please note that the difficulty of these levels can vary and some may require considerable skill to complete. Make sure to check out specific gameplay videos or tutorials if you're looking to tackle these challenges!