# Silent Meridian

> Verified game note.

![Silent Meridian screenshot](https://raw.githubusercontent.com/stackloomdev/silent-meridian/main/docs/screenshots/depth-observatory.png)

## At a glance

- **Score:** 9.1/10
- **Screenshot rating:** 9.0/10 ([manually reviewed image](https://github.com/stackloomdev/silent-meridian/blob/main/docs/screenshots/depth-observatory.png)). Treat this as visual review only; do not infer a playtest.
- **Model:** GPT-6 Astra
- **Technology:** HTML, CSS, JavaScript, WebGL, Browser
- **Estimated FP32 operations/s at 60 FPS:** 1,100,000,000 (low confidence; static estimate, not measured).
- **Rating basis:** Evidence-based estimate from a public live build with four chapters, thirteen puzzles, two time states, progression, saves, bilingual UI, tests, accessibility support, original assets and direct Astra attribution.
- **Verified:** 2026-09-10
- **Repository:** [https://github.com/stackloomdev/silent-meridian](https://github.com/stackloomdev/silent-meridian)
- **Evidence:** [direct model evidence](https://github.com/stackloomdev/silent-meridian#silent-meridian)
- **Live demo:** [open demo](https://silent-meridian.stackloom.org/)

## Screenshots

Use the source screenshot links below. The list records these assets from the game repository or a related source.

- [screenshot 1](https://github.com/stackloomdev/silent-meridian/blob/main/docs/screenshots/depth-observatory.png) — 📸 9.0/10 · manual visual review · Use this frame for the game-level score. Shows a playable scene; assess environmental detail, composition, and action readability. The frame has strong visible polish.
- [screenshot 2](https://github.com/stackloomdev/silent-meridian/blob/main/docs/screenshots/ferry.png) — 📸 8.6/10 · relative frame adjustment · Shows a playable scene; assess environmental detail, composition, and action readability. The frame has strong visible polish.

## Model attribution

Open the evidence link above. Evidence grade: **direct model evidence**.

## Source description

The README explicitly credits GPT-6 Astra in Codex and documents an original bilingual browser puzzle game with four playable chapters, thirteen puzzles, two time states, two endings, autosave, keyboard/touch controls, optional WebGL depth effects and reduced-motion support. The repository contains HTML/CSS/JavaScript source, game and puzzle rules, chapter progression, local assets, tests, build scripts and screenshots. The public live demo opened at its observatory title screen with the chapter count, puzzle count and Enter button. Count one browser game unit.

### Gameplay source

- [https://github.com/stackloomdev/silent-meridian#silent-meridian](https://github.com/stackloomdev/silent-meridian#silent-meridian)

## Verification notes

- **Status:** verified
- **Counted units in repository:** 1
- **Units covered by this note:** 1
- **Discovery:** https://api.github.com/search/repositories?q=%22GPT-6%22+playable+game+in%3Areadme; https://github.com/MartinDelophy/awesome-gpt-6-astra; https://x.com/kepochnik/status/2097286217641697459

[Back to the awesome list](../../README.md)