Building a Text-Based Adventure Game with SpaCy

Text based adventure games allow players to explore stories by typing commands instead of clicking buttons. Here, we build a simple game where a player navigates a fictional forest and makes choices that affect the outcome. To understand this, we combine basic game design concepts with Natural Language Processing (NLP) using the SpaCy library.

To build this game, we focus on the following main elements:

• Natural Language Processing (NLP): Helps the system understand player commands by detecting actions and important words.
• SpaCy Library: Analyzes the typed text by breaking it into words and identifying verbs and nouns to understand the command.
• Game Design Logic: Creates different paths (north, south, east, west) where player choices decide what happens next.
• Class Based Structure: Uses a Python class to manage the game state, process input and control the flow of the story.

Implementing Text Based Adventure Game with SpaCy

Step 1: Install Required Libraries

Run the following commands in your command prompt

pip install spacy

python -m spacy download en_core_web_sm

Step 2: Setting Up SpaCy

We begin by loading the SpaCy model, which enables natural language understanding. This allows us to:

• Tokenize user input
• Identify verbs and nouns
• Perform lemmatization (convert verbs to base form)
• Use dependency parsing for better intent detection

Step 3: Designing the Game World

We create a class Game that will contain all the game logic. The constructor initializes the starting state and loads the SpaCy model.

Step 4: Parsing User Input

We define a method to process player input. This method checks if important keywords are present and returns the base form of the word.

Step 5: Starting the Game

The start method introduces the story and asks the player to choose a direction.

Step 6: Handling Each Path

Each direction has its own method. These methods present a scenario and determine the outcome.

North path

East path

West path

South Path

Step 7: Ending the Game

After the outcome, the game displays a result and asks if the player wants to play again.

Step 8: Running the Game

Create an object of the Gameclass and start it.

Output:

Download the full code from here