> For the complete documentation index, see [llms.txt](https://hujian.gitbook.io/deep-reinforcement-learning/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://hujian.gitbook.io/deep-reinforcement-learning/fang-fa/jie-ji-you-xi.md).

# 街机游戏

街机学习环境( ALE )由50多个Atari游戏组成，是直接从原始像素学习控制策略的深度强化学习算法的主要测试平台。本节回顾了深度学习在ALE游戏的主要进展。