Backflow

You are a sapper.

An emergency signal has been received.
An explosive device has been discovered in the abandoned underground canals of the city.

Preliminary report — dynamite.
Armed and active.
The timer has already started.

Your mission sounds simple:

┌─ Locate the charge
├─ Defuse it
└─ Survive

The underground tunnels have long been considered a danger zone.
Workers whisper about a strange entity that inhabits the canals.
Most dismiss it as an urban legend.

But there is one undeniable fact:

No one who went missing down there has ever returned.

━━━━━━━━━━━━━━━━━━━━━━━━━━

You descend to stop an explosion.

But what if the real explosion
is what’s already waiting for you in the dark?