Fable 5 Endless Runner

A shippable mobile endless runner built in a weekend using agentic AI

Description

A React Native mobile game featuring physics-based mechanics and integrated rewarded-ad hooks for monetization. The project was built autonomously using Fable 5, demonstrating its capability for long-horizon agentic coding and consistent decision-making across complex project scaffolding.

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Details

Why this is interesting: Demonstrates a significant capability leap in autonomous game development, moving from simple scripts to a shippable,…
Attributed to: explos1ve@explosss1ve
Built with: Fable 5
Tags: #endless-runner #react-native #mobile #monetization

Discovered: X
First posted: X · Jul 3, 2026
Listed: Added 91d ago
Build: Moderate
Models: Strong

Prompt

Build an endless runner mobile game in React Native (Expo).
Requirements:
- one-tap jump mechanic, gravity, ground collision
- obstacles that spawn off-screen right and scroll left at increasing speed
- collision detection between player and obstacles
- score counter that increments over time, persists high score locally
- game over screen with restart
- clean separation: game logic, render, input in separate files
Use react-native-game-engine and matter-js for physics.
Set up the project so it runs with expo start.

Source

Fable 5 Endless Runner

Description

How it grew

Fable 5 Endless Runner

Description

How it grew