Echo Protocol — Every Action Leaves an Echo

THE ECHO SYSTEM

One persistent layer records everything you do and feeds it back into the world. Nothing resets. Nothing is forgiven.

ECHO.ENV

Environment

Blow open a wall and it stays open. Flood a district and the water never recedes. The world is a ledger of everything you have done — physical, permanent, and waiting for you when you return.

ECHO.AI

AI Behavior

Enemies remember. Factions study your tactics, fortify the routes you favor, and hunt the habits you repeat. Every encounter teaches the machine something about you.

ECHO.STORY

Story Branches

Dialogue choices, spared lives, and broken promises fork the narrative into branches that never merge back. There is no reload that fully erases what the world has seen.

GAMEPLAY

Cover-Based Combat

Snap to cover, blind-fire, flank, and break line of sight in firefights built around positioning and pressure.

Exploration

A dense, vertical city packed with hidden routes, locked sectors, and secrets the world only reveals after it changes.

Choice-Driven Dialogue

Conversations are combat by other means — every line you pick is recorded into the echo system.

Inventory & Objectives

Manage gear, track branching objectives, and plan loadouts around the consequences you've already created.

Save / Load

Full persistence across sessions — because the echoes you make are designed to outlast any single run.

The Echo Engine

One systemic layer beneath combat, exploration, and dialogue, recording everything and forgetting nothing.

THE WORLD REMEMBERS

Meridian City runs on the Protocol — a surveillance lattice that records every deed into the streets themselves. You are an anomaly inside it: an agent whose actions don't just get logged, they get carved into reality. The route you took, the informant you burned, the wall you brought down — the city carries all of it, and so does everyone still breathing in it.

Uncover who wrote the Protocol. Decide what your echoes become.