I built a prison for the villager that killed my dog — but that’s not the real reason

At first I joke that I built a super-max prison for the NPC that killed my dog 😅
But in reality, this structure is a high-security containment zone designed to hold extremely dangerous entities.

Each area visible in the screenshots is actually a security airlock.
To reach the next section, you must pass through every single zone, one by one. There is no direct access — each layer is meant to slow, isolate, and contain.

The entire facility is designed as a self-sustaining system:

• isolated location
• multiple containment layers
• controlled transitions between zones
• autonomous infrastructure
• constant surveillance access so a human presence can always monitor the site

The screenshots at the end show the living quarters for the guards.
This area is fully autonomous, allowing long-term human presence without relying on the outside world.

The goal was to create something that feels believable in-world, like a facility that could realistically exist in a Minecraft universe to prevent anything from escaping.

This build is part of a much larger underground project, with a strong focus on infrastructure, logic, and realism rather than decoration alone.

Feedback welcome 🙂