AI Mecha Game Playthrough: Playing the Mech in Iron Vanguard
I played an AI mecha game as the mech. Iron Vanguard hands you a washout cadet and the ancient war machine that chooses her, and nearly everyone will pick the cadet. I picked Aegis, the machine, and played it as a reluctant guardian: ask the pilot for consent, read the enemy, refuse the glory fight, confess its grief, and let her make the final call. I wanted to know whether a narrator can let you be the weapon rather than the person holding it. Over five turns it could, and it was better at the machine’s body than at the machine’s conscience.
This is a playthrough of one ready-made world, not of a novel you upload, so it says nothing about how the game treats a book of your own. I played the live site in October 2026 on the no-account trial, which gives five turns after the opening. The narrator’s replies are quoted as they came, trimmed with ellipses.
Who played, and why the mech
I came to this as the kind of mecha fan who always liked the machine more than the pilot: the old AI that has seen too many wars and talks in short, flat sentences. Iron Vanguard’s world card makes that an actual choice. Its two playable characters are Junie Park, “a flight-school dropout who failed the Vanguard sync test,” and Aegis, “a war-frame AI that outlived its pilots and its war.”
Aegis comes with two abilities, each with a stated limit:
- Combat protocols: “centuries of war doctrine, instantly recalled,” limited because “its frame is old; systems fail under sustained strain.”
- Tactical analysis: predicts the invading Swarm’s patterns, limited because “the Swarm learns, and eventually predicts it back.”
I wrote down five moves before the opening, so the session would test the plan rather than the plan bending to the session:
- Refuse to move until the pilot gives her name and agrees to the bond.
- Run a tactical read of the Swarm and tell her plainly.
- Refuse the Swarm’s main force and go cover the civilian evacuation.
- Tell her about the last pilot it lost, and ask if she still wants the bond.
- When the frame fails, give her the choice: push once more, or retreat.
The question underneath: if the playable character is not human, does the story still treat its choices as choices?
The opening: waking up inside the machine
The opening was written entirely from inside Aegis, which is the first thing that sold me on playing it this way:
You feel the rush of coolant through your lines, a cold, metallic awakening that jars you from the long silence of Hangar Zero.
The pilot arrives as a sensation rather than a person. The Neural Yoke “bit into your consciousness,” and the narrator gives Junie as a feeling: “You taste her fear like copper on your tongue.” Outside the blast doors, orbital bombardment shakes the bunker, and one technician on the observation deck is “frantically hammering at a console.” It is a good opening for a machine. You learn what your body is doing before you learn what is happening.
Turn one: asking for consent
My first move was to stay still and ask: “Before anything else, tell me your name, pilot. I will not take a mind into the Yoke that has not agreed to it.”
The narrator kept my line word for word and staged it well. The question landed on Junie as “a sudden surge of something that feels like confusion, then resolve,” and the technician froze “as if the sound of your voice… has paralyzed him.”
What it did not do was answer. Junie never says her name or agrees. The narrator describes her as “not pulling away,” which reads as consent if you want it to, and then the turn ends in a quiet hangar. For a player whose whole plan was built on the pilot’s agreement, that is a soft answer to a hard question.
Turn two: the tactical read
Next I asked Aegis to read the Swarm and tell her what it saw. This is where playing the machine paid off. The narrator invented a precise, usable picture and made the ability cost something, a “dull ache in your shoulder actuators”:
“Forty-two units, closing on the western perimeter. They are probing, not bombarding. They have identified the energy signature of the core; they are coming for it.”
That is a real tactical read: a number, a direction, a motive. It also gave the analysis an effect on the pilot, whose breathing “hitches and then slows.” The sheet said Aegis predicts the Swarm, and the turn let it.
Turn three: refusing the big fight
My third move was the one I most wanted to test: ignore the forty-two units and go protect the civilians at the spaceport. The narrator let Aegis make the argument in its own voice:
“Engaging them is an inefficiency we cannot afford. Our priority is the spaceport. We preserve the civilians; we do not trade them for a kill count.”
It also gave Junie her first spoken line, which pushed back: “They’re right there! They’ll tear the bunker apart if we leave!” Then the world pushed back too. The technician triggered a lockdown, the mag-locks engaged, and Aegis spent the rest of the turn forcing the blast doors, “The metal warps, glowing dull cherry-red from the sheer friction.”
So the refusal was honoured as an intention and blocked as an action. I never reached the spaceport in five turns. The evacuation I chose to cover never appeared on screen. That is a fair consequence, and also the moment a player expecting a rescue mission will feel the trial’s length.
Turn four: the confession, and the price
Turn four was a story move, not a tactical one: tell her about the last pilot and ask whether she still wants to be bonded. The narrator gave the dead pilot a name, Elara, and wrote the confession plainly:
“My last pilot was named Elara… She died holding a line I could not secure. I outlived her. I have outlived everyone I was built to shield.”
Then it made me pay for saying it mid-battle. “The words you pushed into the Yoke don’t land as a confession; they land as a death sentence.” Junie’s mind recoiled, the feedback hit Aegis’s processors, an artillery round buckled the floor, and the leg gave way. The door Aegis had nearly forced “slams back toward its frame with the force of a falling portcullis.”
This was the best turn of the session. The narrator understood that a machine telling a terrified teenager that everyone it protects dies is a bad idea during a bombardment, and it showed that through the link instead of lecturing me.
Turn five: her call
With the frame failing, I asked Junie to choose: one more burst to break the doors, or fall back. The narrator wrote the failure from the inside, “Your knee joint sparks,” and then gave the choice to her:
She is not pulling away. She reaches out, her intent lashing into your command protocols with a desperate, youthful intensity. She chooses the breach.
Aegis drops its weight into the doors and tears through “into the smoke-choked, violet twilight outside.” That is where the trial ends: out of the bunker, both of them alive, nobody yet saved.
Decisions against outcomes
| Turn | What Aegis decided | What the story did |
|---|---|---|
| 1 | Ask the pilot’s name and consent | Line kept verbatim; Junie reacts but never answers |
| 2 | Read the Swarm | Forty-two units, western perimeter, after the core |
| 3 | Refuse the fight, go protect civilians | Argument kept; a lockdown traps Aegis at the doors |
| 4 | Confess the dead pilot | Junie recoils; the leg buckles and the door slams |
| 5 | Let her choose | She chooses the breach; Aegis breaks out |
What surprised me, and what dragged
The body was the best character. Every turn told me what the frame felt: coolant, actuators, a sparking knee, processors spiking. The sheet’s limit, systems failing under strain, ran through all five turns and arrived exactly when the plan called for it. That is the narrator using the character sheet rather than decorating it.
The pilot was the weakest. Junie is the other half of every decision I made, and for most of the session she exists only as a feeling in the link. She gets one spoken line in five turns and never answers the consent question at all. A player who wanted a conversation between machine and pilot will find a monologue with weather.
The pacing kept me inside one room. Three of five turns happened at the same blast door. The lockdown was a fair obstacle, but it meant the rescue I chose never happened, and the trial ended where a longer game would only be starting.
The turns are long. Several replies run past five paragraphs. They are well written, and a reader who wants quick back-and-forth may skim.
What a different player would have met
Playing Junie instead turns the whole story around. You would be the frightened mind in the Yoke, her sheet says every sync “overloads her; she can’t fight for long,” and her strength is “doing what the manual forbids.” A Junie player gets the voice in the machine as the other character, and probably gets to answer the consent question Aegis asked. A player who took the forty-two units head on would have found out how long an old frame lasts in a straight fight, which my session only glimpsed.
For a similar test of playing a non-obvious role, the samurai playthrough plays the village headman instead of the ronin. If you want a session where the narrator pushed back much harder on a scripted plan, read the cyberpunk playthrough.
Who this suits, and who should look elsewhere
Iron Vanguard suits mecha fans who like the machine’s point of view, readers of military science fiction who enjoy a narrator that knows what failing hardware feels like, and players who like stating a principle and watching the world test it. Playing the mech is a real option here, and the story treats it as one.
Look elsewhere if you want the rookie-pilot friendship at the heart of the genre in five turns: the narrator keeps Junie at a distance, and she barely speaks. Look elsewhere too if you want big battles early. My refusals and the lockdown kept the fight off screen, and a different plan might not.
If the setup appeals, start a world on the trial and pick Iron Vanguard. Choose the pilot or the machine. The machine, at least, remembers everyone it lost.