Blood Deep in Dread     - Lustmord
Relic Castle theme        - Pokemon
Time On My Side          - Homestuck albums
Over the Rainbow         - Israel Kamakawiwo'ole
Matrix soundtrack         - The Matrix
Carne Vale                   - Homestuck albums
Zoop                            - RedM
Hit It                             - RedM
Numbers                      - Welcome to Night Vale
Straight Sun                 - Orbital

Had to take out a section and re-scramble it because 40% of the original list was just Homestuck stuff

I'm not a nerd, honest