You Know Python Basics—Now Let's Build Something Real

Published: (January 8, 2026 at 08:56 AM EST)
2 min read
Source: Dev.to

Source: Dev.to

Who This Is For

You’ve completed a Python basics course or tutorial. You understand variables, loops, conditionals, and strings, but you haven’t built anything real yet. This project is specifically for that stage.

I open‑sourced a text adventure game that combines those foundational concepts into one playable program.

Repo:

What You’ll Practice

ConceptHow It’s Used
Variables & Data TypesGame state, rooms, player info
DictionariesNested data for the game world
OperatorsHealth checks, item membership
String Methods.strip(), .lower(), .split(), .join()
User InputInteractive input() game loop
Conditionalsif‑elif‑else and match/case for commands
While LoopsMain game loop
For LoopsIterating inventory with enumerate()
Type HintsSelf‑documenting function signatures

The point isn’t to learn new syntax; it’s to combine concepts you already know.

How to Get the Most from This

Don’t just run the code. Instead:

  1. Read the code first – trace the main loop and predict what happens when you type commands like go north or take torch. Then run it to check your mental model.
  2. Break something intentionally – remove a line or change a condition and observe the error. This reveals what each piece actually does.
  3. Extend it – the repo includes practice exercises:
    • Add a new room with items
    • Implement a locked‑door puzzle (requires a key)
    • Add a scoring system
    • Create new random events

Building on existing code mirrors real‑world projects.

The Pattern You’ll Keep Using

The main game loop looks like this:

while game_running:
    # Check win/lose conditions
    # Display current state
    # Get player input
    # Process command
    # Trigger random events

This loop‑read‑process‑update‑display pattern appears everywhere:

  • CLI tools
  • Chat applications
  • AI chatbots (read user message → send to LLM → display response → repeat)
  • Game engines
  • REPLs

Understanding this pattern helps you recognize it in any interactive program.

Requirements

  • Python 3.10+ (required for match/case syntax)
  • No external dependencies
git clone https://github.com/samuel-ochaba-dev/zero-to-ai-engineer-projects.git
cd zero-to-ai-engineer-projects/dungeon-escape-text-adventure-game
python3 adventure_game.py

Sample Gameplay

========================================
       DUNGEON ESCAPE
========================================

You wake up in a dark dungeon.
Find the exit to escape!
Type 'help' for available commands.

You are in the Entrance Hall.
A dusty entrance with cobwebs covering the walls.
A faint light flickers from the north.

Exits: north, east
Items here: torch

Health: 100 | Inventory: empty

What do you do? > 

Navigate through rooms, collect items, survive random events, and find the exit. The shift from “I know what a while loop is” to “I can use a while loop to build a game loop” is significant, and this project makes that shift concrete.

Adapted from my upcoming book, Zero to AI Engineer: Python Foundations.
I share excerpts like this on Substack →

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