# Barista Shift

> Top-list entry: **this week** (#1), **this month** (#5).

![Barista Shift screenshot](https://raw.githubusercontent.com/swan4er/opus-100-projects/main/103-barista-shift/preview.jpg)

## At a glance

- **Score:** 9.5/10
- **Screenshot rating:** 8.2/10 ([manually reviewed image](https://github.com/swan4er/opus-100-projects/blob/main/103-barista-shift/preview.jpg)). Treat this as visual review only; do not infer a playtest.
- **Model:** Claude Opus 5.5
- **Technology:** JavaScript, HTML, Three.js, WebGL, Browser
- **Estimated FP32 operations/s at 60 FPS:** 850,000,000 (low confidence; static estimate, not measured).
- **Rating basis:** Detailed tactile preparation steps, order/customer feedback, optional risk activities, escalating boss pressure, timed secret-shopper objective and end-of-shift results.
- **Verified:** 2026-09-24
- **Repository:** [https://github.com/swan4er/opus-100-projects](https://github.com/swan4er/opus-100-projects)
- **Evidence:** [repository-level model evidence](https://github.com/swan4er/opus-100-projects/blob/main/README.md)
- **Live demo:** [open demo](https://swan4er.github.io/opus-100-projects/103-barista-shift/)

## 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/swan4er/opus-100-projects/blob/main/103-barista-shift/preview.jpg) — 📸 8.2/10 · 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.

## Model attribution

Open the evidence link above. Evidence grade: **repository-level model evidence**.

## Source description

The collection README states that Claude Opus 5.5 assembled the projects in one autonomous run on 2026-09-23. Count 17 actual browser games: ten entries under “Games with real mechanics” plus seven playable projects under “Games with neural network” (apartment renovation, precinct RPG, rally, interrogation, mafia, character chess and barista shift). Exclude the game generator, open-ended city simulator, scene-making diorama and one-line cartoon. Each counted folder has its own README and index.html; all 17 public GitHub Pages URLs returned HTTP 200. A 200 response confirms availability only; it is not a fresh interactive playtest. Several games optionally use DeepSeek via BYOK at runtime; Claude Opus 5.5 is the documented creator, not the runtime dialogue model.

### Gameplay source

- [https://github.com/swan4er/opus-100-projects/blob/main/103-barista-shift/index.html](https://github.com/swan4er/opus-100-projects/blob/main/103-barista-shift/index.html)
- [https://github.com/swan4er/opus-100-projects/blob/main/README.md](https://github.com/swan4er/opus-100-projects/blob/main/README.md)

## Reverse-engineered prompt

Reconstruct this prompt from the verified source; it is not an original prompt transcript. See [prompt evidence](https://github.com/swan4er/opus-100-projects/blob/main/103-barista-shift/README.md).

```text
Rebuild "Barista Shift" as a separate, playable browser game using JavaScript, HTML, Three.js, WebGL, Browser. Preserve the observed gameplay: A first-person coffee-kiosk shift from 06:00 to 09:00. Fulfill multi-step customer orders by grinding, tamping, brewing, steaming and pouring; mistakes and improvised ingredients affect reviews, while breaks, smoking and beer affect time/behavior. Identify the secret shopper and receive a shift receipt at 09:00.

Use Claude Opus 5.5 only as the documented creator attribution; some games call DeepSeek at runtime, which is separate from the build-model claim. Use a scripted/demo fallback when the optional model or network is unavailable.

Implement the source-observed start state, controls, rules, game-state transitions, progression and completion/failure feedback. Keep it self-contained and verify the behavior against https://github.com/swan4er/opus-100-projects/blob/main/103-barista-shift/README.md and https://github.com/swan4er/opus-100-projects/blob/main/103-barista-shift/index.html.
```

## Verification notes

- **Status:** verified_source
- **Counted units in repository:** 17
- **Units covered by this note:** 1
- **Discovery:** https://github.com/theolundqvist/frontier-games; https://github.com/swan4er/opus-100-projects

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