GAME DEVELOPER / UNREAL ENGINE

GAMEPLAY, WORLDS
AND SYSTEMS.

I am Sergio Prieto — aka @Sethprie — a game developer working across gameplay systems, world building and interactive storytelling.

SHOWREEL / WORK IN PROGRESS
10° 28′ N / 66° 54′ WOpen to joining an ambitious game studioScroll to explore the work

SELECTED WORK / 01—02

PLAYABLE WORLDS.
SYSTEMS WITH SOUL.

A / 001
ORIGINAL
UNREAL
PROJECT

01 / ORIGINAL GAME IN DEVELOPMENT

THE AWAKENING OF THE VAST

My original game in development, inspired by Expedition 33, Dark Souls and The 7th Sage. This is a look at the direction, systems and world-building in progress — there is no public demo yet.

RPG / TURN-BASED COMBAT / SOLO PROJECTUNREAL ENGINEIN DEVELOPMENT / NO DEMO YET

This project is presented as an in-progress body of work: direction, systems and world-building live here.

JUNTOS
GAME JAM
2026

02 / COMPLETED GAME JAM PROJECT

LET’S SAVE MARCO

A frantic FPS born from the Juntos: Game Jam — Venezuela Earthquake Relief. Inspired by DOOM and Osmosis Jones.

GAME JAM / FPS / TEAM PROJECTUNREAL ENGINEPLAYABLE GAME JAM BUILD

A completed team project produced under game jam constraints, with a playable build and a focused production scope.

03 / R&D ARCHIVE

Systems & experiments

A growing archive of combat, dialogue, inventory and world-building experiments in Unreal Engine 5.

SYSTEM / 01

Turn-Based Combat

A readable combat framework built around initiative, tactical choices, status effects and cinematic feedback. Designed for The Awakening of the Vast.

UNREAL ENGINE 53 MEDIA
01 / 03

SYSTEM / 02

Dialogue System

Branching conversations with authored choices, narrative state and a presentation layer that keeps the player focused on character intent.

UNREAL ENGINE 52 MEDIA
01 / 02

SYSTEM / 03

Inventory & Interaction

An extensible inventory loop connecting item data, interaction rules and player feedback so every pickup has a clear gameplay purpose.

UNREAL ENGINE 52 MEDIA
01 / 02

04 / DISCIPLINES

THE FULL STACK
OF CREATION.

A cross-disciplinary practice spanning gameplay code, environment art, animation, audio and narrative design.

ONE CREATORmany
languages
from systems to sound
Unreal EngineBlueprints · C++ · UE5
BlenderModeling · Animation · World building
UnityGameplay prototyping · Systems
Substance PainterAdobe Substance 3D · Materials · Surfacing
ReaperCockos · Sound design · Music composition
ASP.NETC# · Web development
ALL
IN
ONE
SERGIO PRIETO
SETHPRIE / 2026

ABOUT THE PRACTICE

FROM IDEA
TO PLAYABLE
SYSTEM.

I started developing games more than ten years ago in RPG Maker. Since then, I moved from engine to engine — Unity, GameMaker: Studio, Godot and Construct 2 — until I found Unreal Engine. That is the engine I committed to because it best matches the way I want to work across gameplay, technical design, world building and presentation. The projects below show that practice in progress.

TSU in Computer ScienceGraduated 2025

05 / OPEN CHANNEL

OPEN TO THE
NEXT TEAM.

Seeking a gameplay, technical design or creative technology role within an ambitious game studio.

Contact me about a role