Virtual File System (VFS) is a lightweight C# framework that allows merging folders and zip-archives into one unified virtual hierarchy, enabling seamless modding, DLC, and content overrides for games.

An Unreal Engine 5.3 RPG practice project built around Gameplay Ability System.

RECYCLEd CardStock : A General Game Playing Engine for Card Games

Kizu Engine is an Unreal Engine plug-in that contains the main components for replicated game systems. It can be used for a huge variety of projects due to its flexibility.

Inventory system from S.T.A.L.K.E.R.: Call of Pripyat on unreal engine 4 with 4k GUI and all functions

MakeRPG is intended to be a system that allows anyone who can edit plain text YAML files to make automatic characters from game systems.

Workflow Diagrams For The Development Of This Cardinal System Tree

Unity Game Framework (UPM) — 22 reusable runtime systems: Audio, Camera, Combat, Movement, Object Pool, Save, FSM, Event Bus, and more

Lightweight, thread-safe C# event bus (event aggregator) for games and apps. Designed for simplicity, ease of use and robustness.

Unofficial GURPS 4e game system for Foundry Virtual Tabletop

StatDictionary is a simple, type-safe stat container designed for games that rely on numerical attributes - whether for character attributes, item properties, or entire gameplay systems.

A lightweight C# library for managing game settings using strongly-typed access with JSON files stored in the user's AppData directory. It supports automatic recovery from corrupted data, built-in defaults and atomic file operations.

Unity Battle Pass case study with modular service-based architecture, persistent currency/reward systems, and a custom infinite scrolling Battle Pass UI.

Game systems analyst — design, balance, and stress-test mechanics across 20 game traditions, plus parametric engine tuning and agent-incentive analysis (reward hacking, game theory). A Loa construct.

Portfolio of gameplay systems, shipped games, and HTML5 playable ads.

Systems-driven puzzle prototype focused on state-based color interactions, player readability, and feedback clarity within a constrained design space.

Thin Unity integration layer for engine-independent B44 game-system libraries.

Stealth-action prototype demonstrating state-driven enemy AI, detection systems, and gameplay feedback architecture (Unity / C#)

Study Cherno's Game Engine

Last Paragon 2 (LP2) is a dark fantasy survival open-world RPG project built in Unreal Engine. The project focuses on a modular system-driven architecture where gameplay features are designed as independent but interconnected systems, including Player, Enemy AI, Skills, Inventory, Crafting, Companions, and world interaction“Everything Is A System.”