Anyone Can Make Amazing Games Now (Easy)

I vibe coded a full game sequel using Claude Code and Codex, and it proved something important about AI and game development.

A year ago I built The Librarian, a playable vibe coded game you can still find on GitHub. This time I wanted to see how far AI coding tools have come, and whether one person could build something that actually feels like a real game.

I used Claude Code with Opus 5 for the initial build, then switched to Codex and GPT-5.6 Sol for all the fine-tuning. The result is The Librarian 2, a 3D procedurally generated roguelite with boss enemies, natural disasters, meta progression, and a chaos system. 10,400 lines of code across 33 modules. Zero asset files.

The verdict: game development is far from cooked. But it's also a lot harder than the one-level demos on X make it look.

Discover More:
🛠️ Explore AI Tools and News: https://futuretools.io/
📰 Weekly Newsletter: https://futuretools.io/newsletter

Socials:
❌ Twiter/X: https://x.com/mreflow
🖼️ Instagram: https://instagram.com/mr.eflow
🧵 Threads: https://www.threads.net/@mr.eflow
🟦 LinkedIn: https://www.linkedin.com/in/matt-wolfe-30841712/
👍 Facebook: https://www.facebook.com/mattrwolfe

Resources From Today's Video:

Librarian 2: https://the-librarian-2.mreflow.chatgpt.site/
Librarian 2 github repo: https://github.com/mreflow/the-librarian-2
Librarian : https://the-librarian-game.vercel.app/

Let’s work together!
- Brand, sponsorship and business inquiries: [email protected]

Chapters:
00:00 Why Game Dev Isn't Cooked
03:29 The Librarian 2 Plan
04:39 Two Model Workflow
05:19 Building V1 With Claude Code
08:32 First Playtest and Bug Fixes
12:48 GitHub Backup and Model Handoff
14:19 Fine-Tuning With Codex
15:52 Live Playtest With Dave
20:05 Is Game Dev Actually Cooked?
21:25 Final Tweaks and Verdict

#VibeCoding #ClaudeCode #AIGameDev

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