Open-source alternatives to Unknown Horizons

lifeRestart is a life simulation game where players make sequential decisions that affect their character's future outcomes and final score. It utilizes a deterministic state machine and a stat-based character manager to track health, wealth, happiness, and relationships as they update dynamically based on in-game events. The simulation employs a seeded random number generator to ensure that identical sequences of player decisions produce reproducible outcomes. It features a reincarnation loop that allows players to start over after death, carrying over accumulated knowledge or meta-progressi

Hearthstone Deck Tracker is a gaming companion application and collection manager for Windows. It serves as a game utility for tracking real-time gameplay data, managing card collections, and analyzing deck performance through match history and win rates. The application features a plugin-based architecture that allows for the addition of third-party logic to introduce custom tracking behaviors and automation triggers. For broadcasters, it provides a chroma-key compatible streaming overlay to display real-time game data on live video feeds. Its capabilities include importing deck lists from

This project is a programming education resource and a collection of vintage game ports. It provides a library of classic computer game implementations and algorithmic problems translated into modern memory-safe scripting languages for educational study and execution. The collection focuses on the implementation of game logic and the practice of fundamental computer science algorithms. It includes diverse examples of procedural content generation, such as random mazes and text-based art, alongside mathematical visualizations. The project covers a wide array of simulation categories, includin

Strategy game based on history, mythology and fiction

Beyond-All-Reason is a real-time strategy game and 3D military simulation focused on large-scale tactical combat, base building, and resource management. It functions as a competitive multiplayer platform featuring ranked lobbies and skill-based matchmaking. The project includes a custom map editor for designing unique game levels and environments through structural and thematic configuration. The simulation covers military-industrial economy management, including resource extraction and asset recovery. Tactical gameplay involves commanding army formations, using radar for enemy unit detecti

:tada: 2048 in your terminal

Julius is a cross-platform game engine and simulation tool designed for the reimplementation of legacy games. It executes original game logic using the original assets while applying modern resolution and interface updates. The engine features a localization framework for integrating community translations of text, audio, and video, and an integrated scenario editor for configuring gameplay rules and resource requirements within map data files. The project covers a broad capability surface including save game management with automated backups, input mapping for diverse keyboard layouts and t

Citybound is an open-source multiplayer city simulation game and collaborative urban planner. It provides a shared digital space where multiple users co-manage city growth, design infrastructure layouts, and develop urban environments in real time. The project functions as a collaborative city builder, allowing players to plan and evolve a virtual city together. Changes made to the urban environment are reflected immediately for all connected participants within the shared simulation. The system utilizes an entity-component simulation to manage urban behavior and a shared-world coordinate sy

Source code of open-source Colobot: Gold Edition project developed by Epsitec and TerranovaTeam

:deciduoustree::housewithgarden::office::evergreentree: A city building simulation game

Caesar III (Open source remake)

This repository contains Swarm Assault remake project based on the OpenRA Mod SDK.

A strategy game based around the actions of RAF Bomber Command in the Second World War.

A Pikmin-based game/engine for fan-made content.

FIFE is a multi-platform isometric game engine

Frets on Fire X: a fork of Frets on Fire with many added features and capabilities

A port of Micropolis to JS/HTML5

Official Hedgewars mirror for GitHub!

An underwater one-button real-time strategy game.

A KKnD and KKnD2 mod on OpenRA engine.

Phone Case of the Monster

Chess GUI

Lutris is an open source game launcher and library manager that provides a unified dashboard for organizing and executing video games. It functions as a game installation automator and a wrapper for compatibility layers, allowing software designed for different platforms to run on Linux and macOS. The project distinguishes itself through a runner-based execution model that manages specific software environments and emulators. It utilizes community-driven scripts to automate the downloading and setup process for games and synchronizes libraries across multiple digital storefronts and third-par

A physics platform game about a plucky wheeled robot named Polly.

MegaGlest real-time strategy game engine (cross-platform, 3-d)

Source code of KeeperRL

Romanov's Vengeance is an OpenRA mod based on Red Alert 2.