Lethal2D

Lethal2D is a 2D top-down survival-exploration game built with Python and Pygame. Inspired by the popular game Lethal Company, Lethal2D tasks players with exploring abandoned moons, collecting scrap, and returning to their ship to meet an ever-increasing profit quota—all while avoiding dangerous entities.

Game Overview

In Lethal2D, you play as a contract worker for "The Company." Your objective is simple but dangerous:

1. Land on a moon.
2. Explore abandoned buildings and collect valuable scrap.
3. Return to your ship before midnight.
4. Deposit loot to reach your quota and live another day.

Gameplay Mechanics

• Dynamic Environments: Move between different rooms including your Spaceship (home base), the Moon surface, and the Abandoned Building.
• Time Management: Monitor the in-game clock. If the day ends at midnight and you haven't met the quota, it's game over.
• Inventory System: You can carry up to 5 items at a time. Manage your value and weight efficiently.
• Increasing Difficulty: As you meet quotas, the profit expectations and enemy spawn rates increase, making every day faster and more challenging.
• Enemies & Pathfinding: Watch out for "Hoarder Bugs" and other entities. They don't have a health system yet, but touching one will make you drop all your hard-earned loot.

Controls

• Movement: W, A, S, D or Arrow Keys.
• Collect Scrap: Space when standing over an item.
• Drop Loot at Ship: G while inside the spaceship.
• Room Transition: Press 1 or 2 at portals/doors (depending on destination).

Technical Details

Data Structures and Algorithms

• A Pathfinding*: The hoarding bugs utilize the A Algorithm* to chase the player efficiently. This uses a Euclidean distance heuristic for optimized shortest-path calculation.
• Scene Management: A dictionary-based system manages transitions between the Spaceship, Moon, and Building rooms.
• Inventory Management: Implemented using list data structures for efficient item tracking and weight calculation.

Design Assets

All sprites, including the player character, enemies (Hoarder Bugs), and various scrap items (horns, gold bars, mugs, stop signs, etc.), were custom-designed using Aseprite.

Project Motivation

This project was developed to recreate the immersive and challenging essence of Lethal Company in a 2D space. It serves as a demonstration of applying complex algorithms (like A*) and structured game design using the Pygame library.

Contributors

Developed by Group 3 - CS2B:

• Krystal Bacalso
• Chas Madlos
• Shaira Dadios
• Joseph Deysolong
• Javier Raut