Sector 1

Sector 1, also known as Quantum Quarks, is the 1st Sector in the game (obviously). It requires no towers to beat. There are 13 Towers and 1 Citadel.

Design
The design is futuristic (modernistic in tower design), containing a beam shooting up at the spawn and lots of neon. Similar to Ring 1 of JToH, the towers and spawn are on neon platforms floating in the air. The Intermediate and Advanced Tower zones look like they are falling apart because it looks cool.

"Hidden Towers"
Tower of The Absolute Lesson is below the other three towers on a tiny platform by itself. There is a tower falling into the void (presumably the soul-crushing tower), completely separated from everything else.

Staff
The staff "room" is located underneath the starting platform. It's very large, despite the fact there's only 3 people on the team.

Agender Flag
Under the staff "room" there is an agender flag on the platform.

Beginner Towers
Catastrophic - Tower of The Absolute Lesson

Catastrophic - Tower of Terse Persecution

Horrific - Mentally Exercised Trials and Levels Facility

Catstrophic/Unreal - Tower of Shortlived Times

Intermediate Towers/Citadel
nil - Tower of the Quest for Perfection

Why - Open Slot/Tower

No - Open Slot/Tower

No - Open Slot/Tower

DEATH - Open Slot/Tower

Why-Unimaginable - Open Slot/Citadel

Advanced Towers
HELL - Open Slot/Tower

TARTARUS - Tower of Extreme Funk

TARTARUS - Open Slot/Tower

Omega - Open Slot/Tower (Soul Crushing)

Music
Lobby - Waveshaper - Radio Signal (slowed down)