Full name of prod: Devotion
Author: fatalsnipe
Event: Multimatograf 2018 (29.04.2018 - 30.04.2018)
Compo: 8bit music
Platform: ZX Spectrum + AY / pt3 (Vortex Tracker)

Link: http://events.retroscene.org/mf2018/8bit_music/1736