This is a Tilt++ fork with the 3-Clause BSD License from the copyright headers explicitly stated in a LICENSE file.
Original Tilt++ (c) 2019-2020 Nash Muhandes Future additions (c) 2020 Sanya Waffles
Tilt++ is a GZDoom mod that adds screen tilting during strafing, swimming underwater and upon death.
C#BSD-3-Clause