I'm Nick Marmaras.

UE5 Ratchet: Deadlocked Dreadzone Station Demo

A fast-paced Unreal Engine 5 fan demo built in 7 days, recreating the feel of Ratchet: Deadlocked with a playable DreadZone station, arena combat, and presentation inspired by the PS2 classic.

• Character basic animations and more complex animations(triple attack, jump attack, double jump, strafing with weapon)
• Familiar sounds from the game(soundtracks, and sound effects)
• Dynamic map more realistic
• Teleporting effect(deadzoze, to the arena)
• Weapons vendor with interaction from the real game
• Secondary characters(clank, Big Al, custom boss )
• Dynamic UI's such as weapons equiped, ranking status
• Niagara system
• Real time cameras showing ratchets moves from the game and realistic lcd displays for textures
• Boss AI

• Unreal Engine 5

• Branding
• Unreal Engine 5

Ticket To Ride Card Game

A polished 2D adaptation of Ticket To Ride Card Game created for a core Computer Science course, focused on clear turn-based flow, strong interaction design, and faithful gameplay systems for two players.

• Implementation based on pronunciation
• 2 player interaction with turn switching
• Collect points through regular and special cards through a board
• Save game and load game
• Move cards in the GUI to various positions

• Java 8
• Java Swing

• Branding
• Java Programming Language

Alpha Programming Language

A full compiler project covering lexical analysis, parsing, virtual machine design, and library support, built with Flex/Yacc-style tooling to turn language theory into a working implementation.

• Alpha Programming Language, Flex, Yacc, Compilers, C Language

Super Mario Bros(1985)

A 2D recreation of Super Mario Bros. (1985) built for a university elective, capturing the feel of classic platforming through tile-based level design, sprite-driven animation, and gameplay systems inspired by the original.

• Implementation based on pronunciation
• Tile-based game
• Collision Detection
• Implementation of character movements through Sprites
• Sprites based on small, Big, Indestructible Mario
• Implementation of bonus room
• Presentation of a game to a teacher supervisor and fellow students

• C++
• Allegro

• C++, Allegro

Unreal Engine 4 Survival Horror Game

A personal survival horror concept developed in Unreal Engine 4, where I handled the pitch, scenario design, and core gameplay implementation from idea to playable prototype.

• Presentation of personal idea and game scenario to a supervising professor
• Designing game requirements
• Implementation using Unreal Engine and C++ (3D Game)

Technologies:

• Building architecture according to blueprints (3 floors)
• First Person View (FPV) character
• Adding features via C++ (lens for use by the character)
• Implementation of mini games depending on user interaction

• Unreal Engine 4, C++, Designer, Director, Developer, Scenario

Data Analysis on R

A data analysis project in R focused on preprocessing biomedical datasets, normalizing inputs, and uncovering patterns through PCA visualizations and subject-level comparisons.

• Preprocessing Datasets
• Normalization of the Datasets
• Exploratory analysis for each disease dataset with PCA plots
• 2 Different analysis for each individual

• R Programming Language

Client Server in Python

A Python networking project centered on client-server communication and relay behavior, designed to explore socket programming, message flow, and reliable coordination between connected peers.

• Python
• Networking
• Client-Server

Social Network

A web-based social network prototype focused on authentication, geolocation features, REST-driven interactions, and dynamic client-side updates.

• HTML, CSS3
• DOM manipulation, OpenStreetMap geocoding, HTML5 geolocation, and AJAX requests
• Sign up and sign in user implementations
• REST API, user posts, and Git-based collaboration
• jQuery, JavaScript, and Servlets

• HTML, CSS3, Javascript, JQuery, Servlets, REST API, Git

Ratchet & Clank: Giant Clank Battle in UE5 VR Prototype

A UE5 VR prototype inspired by Giant Clank, built around large-scale destruction, missile attacks, and performance-conscious design for standalone and PC VR headsets.

• VR Oculus Quest 2
• VR XR Elite
• Directional Gravity
• Unlit materials

• Unreal Engine 5

PyGame Justice League Fighting 2D

A fast-paced 2D fighting game prototype built with Pygame, combining sprite animation, collision handling, and support for solo, local multiplayer, and online play.

• PyGame
• Sprites
• Collision
• Multiplayer

• Python 3
• Pygame

PyGame Doom - Wolfenstein

A retro-inspired raycasting shooter built with Pygame, blending classic Doom and Wolfenstein energy with sprite-based enemies, collision systems, and multiplayer support.

• PyGame
• Sprites
• Raycasting
• Multiplayer

• Python 3
• Pygame

JARVRICKS

JARVRICKS (Just Another Robust Virtual Reality Inverse Kinematics Solution) is a full-body VR IK system built in Unity for Vive XR Elite and Vive Ultimate Trackers, combining multithreaded C# jobs, runtime IK editing, and practical calibration workflows.

• Inverse Kinematics
• Multithreading
• C# Graphics Job
• VR IK Editor

• Unity
• HTC
• HTC Vive Ultimate Trackers
• HTC XR Elite

Zombie Survival

A fast-paced survival shooter built in Unity, where players fend off waves of zombies in a stylized post-apocalyptic setting powered by HDRP visuals and cinematic presentation.

• HDRP
• Survival

• Unity
• First Person Shooter

NPC Game

A Unity FPS prototype focused on companion AI, featuring a drone assistant with behavior states for following, attacking, idling, and collecting health pickups in response to player context.

• Idle mode -> spins around the player when the player is not moving
• Follow mode -> tracks the player from its last known position
• Attack mode -> launches particles when the closest enemy enters range
• Health pickup mode -> retrieves the nearest health pack and returns to the player

• Unity
• First Person Shooter

Google Cardboard game

A mobile-first infinite runner designed for Google Cardboard, using smartphone movement as the core input for dodging obstacles, jumping, and chasing higher scores in VR.

• Infinite Runner
• Survival

• Unity
• Google

Sly Cooper Unreal Engine 5.5 Prototype

A Sly Cooper-inspired Unreal Engine 5.5 prototype created to celebrate the series' 20th anniversary, recreating signature traversal, interaction, and presentation features from the original games.

• Character animation and traversal systems
• Rope walking and rope climbing
• Barrel-breaking interactions
• Health system with player feedback
• Binocular mode for exploration
• Paris-inspired environment and water simulation

• Unreal Engine 5
• Playstation

Hellas Logo Quiz

A mobile quiz game built around well-known Greek brands and products, designed to be fun, nostalgic, and educational as players unlock stages by recognizing familiar logos.

• Logo Quiz
• Logo
• Puzzle

• Unity
• Android

Armor Of God

Armor Of God is a dark fantasy action concept set in a world of ruined cathedrals, cursed forests, and fading faith, where a fallen Templar hunts the scattered relics of a sacred armor that could decide the fate of the world.

• Armor Of God
• Single Player

• Unreal Engine
• PC

Marmatrix

Marmatrix is a lightweight modern OpenGL engine built for clarity, fast iteration, and hands-on experimentation, pairing a clean C++17 architecture with practical rendering, tooling, and world-building foundations.

• a minimal, readable rendering loop (model-view-projection done right)
• practical building blocks for cameras, chunked worlds, meshes, and textures
• immediate-feedback tools such as a debug overlay and menu
• a foundation you can extend toward voxel worlds, lighting, PBR, instancing, and ECS

• OpenGL
• GLFW
• Glad
• C++