Recursive Game Creator: The First Experience-Oriented, Product-Level Game Agent Harness Framework 🔥

Most AI game-generation agents focus on making games that run. But a playable game is not necessarily a fun game. Beyond functional correctness, creating engaging games requires continuous playtesting, experience evaluation, and iterative refinement.

Introducing Recursive Game Creator (RGC)! 🚀

RGC moves beyond one-shot game generation with a recursive development loop involving four specialized roles: Designer → Builder → Player → Reviewer. By continuously building, playing, evaluating, and refining games, RGC aims to transform rough prototypes into engaging, product-level gaming experiences.

💡 Core Innovations

🎮 Coding-Native Player: Instead of relying on slow, screenshot-driven GUI interactions, RGC generates executable gameplay policies that interact with games through programmatic interfaces. This enables efficient, repeatable, and diverse gameplay trajectory collection, supporting more comprehensive playtesting and evaluation.

🧠 Experience-Oriented Reviewer: RGC combines gameplay trajectories, visual evidence, and player-preference signals to evaluate games using both general and game-specific criteria. It identifies issues in gameplay, difficulty, progression, and presentation, providing actionable feedback to guide the next development iteration.

📊 Experimental Highlights

✅ SOTA on GameCraft-Bench: Achieves the highest overall score of 77.89, outperforming the same-model baseline by 6.63 points after three refinement rounds.

✅ Substantial Improvement on GameASG-Bench: Achieves a strict task success rate of 53.2%, a 34.1-percentage-point improvement over Codex-GPT6-Astra high.

✅ Strong Runtime Reliability: Achieves the highest mean L2 runtime-check pass rate of 93.4% among the compared methods.

✅ Improved Player Experience: Expert evaluations show consistent improvements in controls, playability, content depth, and visual quality, with average playtime increasing from 1.50 to 12.41 minutes across refinement rounds.

From games that simply run to games that are genuinely enjoyable.

RGC takes a step toward AI agents that can not only build games, but also evaluate, understand, and continuously improve the player experience. 🎮

⭐ Check out our work, give the repository a star, and try it out!

📄 Project Page: https://imbaldy.github.io/recursive-game-creator

📑 Paper: https://arxiv.org/html/2610.08621v1

🚀 GitHub: https://github.com/IMBALDY/RecursiveGameCreator

🤗 Hugging Face: https://huggingface.co/papers/2610.08621