DFT Software I have been using ultimately
Quantum ESPRESSO
Some notes on Quantum ESPRESSO
Elk
GW and Bethe-Salpeter Software
Yambo
BerkeleyGW
Various (other) DFT Software
ABINIT
WIEN2k
SIESTA
OCTOPUS
GAMESS
AIMPRO
Pseudopotentials
Libxc
APE
Theos Server
Crystal
Pseudo-Dojo
Standard Solid State Pseudopotentials
OPIUM - pseudopotential generation project
Atom manipulation and visualization
XCrysDen