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Build a small Snake game

This project joins the beginner lessons into one playable loop: input changes direction, each tick moves the snake, food adds score, and a self-hit ends the run.

Runnable mini Snake

Use the arrow keys, then choose Restart after a game over.

What you need

Complete the setup, drawing, game loop, input, collision, and state lessons first.

What you will learn

How a small state object turns several separate game ideas into a complete playable rule set.

Build order

  1. Draw a grid and one snake segment.
  2. Move one grid cell per tick.
  3. Store a direction from keyboard input.
  4. Add food, score, and self-collision.

Common mistakes

Do not allow an immediate reversal into the snake’s neck, and reset both the body and direction when restarting.

Use it when

Snake is a good first complete project because the rules are visible and small. It is not a replacement for a larger project architecture once the number of entities and levels grows.

Real game connection

Compare this mini version with the playable Snake game, then return to the beginner route to review any missing step.

Source and update

Canvas drawing and animation concepts are based on MDN’s Canvas tutorial. Updated 2026-07-14; the mini game was checked locally with keyboard input and restart.