What about THOSE?

Rather Useless CTF
Dirty Laundry
Happy Desert
JAIL
Happy Semiconductor
Superconductor CTF
D!gwouqnz MgLsou6 (aka upside down DW for all foos)
Waterfall Caves
Letni is a freaky place

A bit of not-well known levels can't hurt anyone, just download those and train there ;p