# Castoria - New Era Ai Puzzle — Keep the Secret to Yourself

> Keep the Secret to Yourself (iPhone/iPad app by Paulo Coutinho.)

- Source: https://appshunter.io/ios/app/castoria-new-era-ai-puzzle/id6753732670 (this page in markdown: same URL + `.md`)
- Developer: [Paulo Coutinho](https://appshunter.io/developer/659252104)
- Category: Games, Entertainment, Puzzle, Trivia
- Price: Free with in-app purchases
- Age rating: 4+
- Requires: iOS 26.0 · 78 MB
- Languages: American English, European Portuguese, European Spanish
- Released: 2025-10-23
- Data updated: 2026-05-19
- User reviews in markdown: https://appshunter.io/ios/app/castoria-new-era-ai-puzzle/id6753732670/reviews.md

## What is Castoria?

Castoria - New Era Ai Puzzle

Castoria is the first game in the world with an NPC powered entirely by local AI.
No servers. No scripts. No repeated lines.
Every word, every reaction, every silence is generated in real time by the intelligence inside your device.

You’re not playing against code — you’re talking to a mind.

There is a gate.
And there is the Old Man who guards it.
He holds the secret phrase that allows you to pass through. But he won’t give it away easily.
Every conversation with him is unique, unpredictable, and alive.

The goal seems simple: discover the secret phrase.
But those who claim to have found it never came back.
No one really knows what lies beyond the gate.
Some say it’s knowledge. Others say it’s madness.

When you speak, the Old Man listens and responds — sometimes with wisdom, sometimes with riddles, sometimes with silence. His behavior is shaped by your words, your tone, your persistence. Every player faces a different version of him.

You can buy hints when you feel lost. Tap the hint icon to purchase clues that may bring you closer to the truth — but beware: he never says things directly. You’ll have to interpret his answers, read between the lines, and outsmart his intelligence.

Remember the only rule:
• When you find the secret, keep it to yourself.
• Do not share it. Do not reveal it.
• The mystery lives only while it remains unsolved.

This is not a game of levels or patterns — it’s a living puzzle that reacts to you.
Each playthrough is exclusive. Each conversation is new. Every outcome is different.

Controls are simple and intuitive:
• Use touch to move your character.
• Tap the action button to interact with the environment.
• Use the hint icon to access the Old Man’s clues.

Castoria blends psychological challenge, mystery, and cutting-edge technology in a way no other game has done before. It’s not just a puzzle — it’s a conversation between human and machine, between logic and deception.

Can you outsmart the AI guarding the gate?
Can you trick the Old Man into revealing what he swore to protect?
Or will you become part of the mystery like those who came before you?

Castoria is exclusive to devices running the on-device intelligence system for iOS 26.

Learn how to install and enable it: https://support.apple.com/121115

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| 5 Hints | $2.99 | one-time |
| 1 Hint | $0.99 | one-time |
| 10 Hints | $6.99 | one-time |



## Version history (last 2 releases)

### 1.1.0 — 2025-10-24

- Better UI
- Small fixes

### 1.0.0 — 2025-10-23

No release notes.

## More apps by Paulo Coutinho

- [iPacote - Utilitários, Lanterna, QRCode, Operadora de telefone e Rastreamento](https://appshunter.io/ios/app/ipacote-utilitarios-lanterna-qrcode-operadora-de-telefone-e-rastreamento/id659252101)
- [Fly For Coins](https://appshunter.io/ios/app/fly-for-coins/id870686218)
- [Ezored - C++ tasks](https://appshunter.io/ios/app/ezored-c-plus-plus-tasks/id1492446109)
- [Avinu - Bible Theology Pray](https://appshunter.io/ios/app/avinu-bible-theology-pray/id1559840010)
- [iMinerator - Invest & Bitcoin](https://appshunter.io/ios/app/iminerator-invest-and-bitcoin/id1562067391)
- [Util 123 - Nice dev tools](https://appshunter.io/ios/app/util-123-nice-dev-tools/id1593176959)

All apps by Paulo Coutinho: https://appshunter.io/developer/659252104

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-19.*