with the modular kit the AI could assemble this in a few minutes
prompt: "build a larger courtyard house, some parts of the building should have 2 stories, walls should be integrated in the architecture"
Feels obligatory to test Claude Fable 5’s performance in game development.
I fed it an old rougelike HTML action game I previously built with Opus, and Fable 5 turned it into 3D in 10 minutes.
The upgrade is obvious
- Animation
Before: Nano Banana + motion frame generator + ASCII converter to get usable action sprites and animation.
After: prompt directly generates the weapon and matched animation.
- Audio Design
Before: only one basic hit sound repeated.
After: BGM, hit SFX, enemy kill SFX, and level clear audio.
- Visual
Before: ASCII visuals were mostly flat and hard to push into action gameplay.
After: it preserved the 2D ASCII aesthetic, while adding 3D depth, perspective, and impact through a hybrid rendering style.
- Character
Before: even simple boss designs like a spider or tiger were hard to recreate.
After: it pulled boss prototypes from my design doc, turned them into 3D models, and animated them in one pass.
The attacks also feel much better, though I’m not 100% sure how much of that comes from my earlier stat tweaks versus Fable itself.
This is the real intent-to-gameplay moment.