Real AI agent use cases, with sources and setup prompts

Make a cozy 3D fishing game with Claude, Blender, Tripo and Unity 6

A solo developer built a fishing game with one rule: each tool gets one job. Tripo generates every model, Blender cleans them, Opus 5.5 writes the Unity 6 code piece by piece instead of asking for a whole game.

$4 in / $20 out per 1M tokensWeeksAdvancedSource linked

Source

@sorenxet on X · 2026-10-19

Written in our own words. Credit to the original author. Link checked 2026-10-22.

What they did

A solo developer built a fishing game with one rule: each tool gets one job. Tripo generates every model, Blender cleans them, Opus 5.5 writes the Unity 6 code piece by piece instead of asking for a whole game.

Result (as claimed)

A beach, pier, day/night cycle and fishing controls that feel right; 500+ likes.

Tools they used

Cost: Claude Opus 5.5: from $4 in / $20 out per 1M tokens; Claude Code: from $17/mo; Tripo: free plan, paid from $20/mo.

Set it up

  1. Write a one-page brief

    Describe the app in plain words: who it is for, the 3 core screens or actions, and what "done" looks like.

  2. Start the project with your agent

    Open Claude Opus 5.5 and paste the brief. Ask it to propose a stack and a file plan before writing code.

  3. Build one slice at a time

    Ship the smallest working flow first, run it, then add features one by one. Commit after each working step.

  4. Test it like a user

    Click through on desktop and phone. Ask the agent to add basic tests and fix anything that breaks.

  5. Check security and ship

    Keep keys in environment variables, check auth and database rules, then deploy and share the link.

Copy the full setup prompt

Paste into your agent and it will walk you through the setup, asking before anything that sends, posts or spends.

You are helping me set up this AI use case end to end in Claude Code.

Goal: Make a cozy 3D fishing game with Claude, Blender, Tripo and Unity 6
What the original author did: A solo developer built a fishing game with one rule: each tool gets one job. Tripo generates every model, Blender cleans them, Opus 5.5 writes the Unity 6 code piece by piece instead of asking for a whole game.
Reported result (as claimed by the author): A beach, pier, day/night cycle and fishing controls that feel right; 500+ likes.
Source: https://x.com/sorenxet/status/2112213933272490380
Tools they used: Claude Opus 5.5, Claude Code, Blender, Tripo, Unity
Category: Vibe coding & apps

Please:
1. Ask me 3 short questions about my situation (accounts I have, budget, what I want the output to look like).
2. Propose a step-by-step plan using these tools or cheaper alternatives, with the time and cost of each step. Use official pricing pages; say "check pricing" if unsure.
3. Then do the setup with me one step at a time, waiting for my OK before anything that sends messages, posts publicly, spends money or deletes data.
4. Finish with a checklist to run it again next time.

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Guides for this use case

How to make 3D scenes and models with AI and Blender · How to make a Godot, Unity or 3D game with AI agents · How to vibe code a game with AI · How to vibe code an app with Claude Code

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