Building learn2slither: A Reinforcement Learning Tutorial with Q-Learning and DQN

📰 Medium · Machine Learning

Learn to build an agent that plays Snake using Q-Learning and Deep Q-Networks in PyTorch, applying reinforcement learning fundamentals to a classic game

intermediate Published 25 May 2026
Action Steps
  1. Implement tabular Q-Learning to train an agent to play Snake
  2. Build a Deep Q-Network in PyTorch to improve the agent's performance
  3. Configure the environment and reward function for the Snake game
  4. Train the agent using Q-Learning and DQN algorithms
  5. Compare the performance of the two algorithms
Who Needs to Know This

Machine learning engineers and researchers can benefit from this tutorial to understand how to apply reinforcement learning algorithms to complex tasks, while software engineers can learn how to implement these algorithms in PyTorch

Key Insight

💡 Reinforcement learning algorithms like Q-Learning and DQN can be used to train agents to play complex games like Snake

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🐍 Teach an agent to play Snake using Q-Learning and DQN in PyTorch! 🤖 #RL #PyTorch

Key Takeaways

Learn to build an agent that plays Snake using Q-Learning and Deep Q-Networks in PyTorch, applying reinforcement learning fundamentals to a classic game

Full Article

> Teach an agent to play snake using two RL algorithms — tabular Q-Learning and a Deep Q-Network in PyTorch. Continue reading on Medium »
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