
Tulio Duarte
Game Designer and Gameplay Programmer
I’m a Game Designer and Gameplay Programmer with nearly 10 years of professional experience, with a strong focus on systems design and core gameplay mechanics.
I hold a Bachelor’s degree in Science and Technology from UFBA, where I developed a solid programming background while also studying Design and Arts through scholarships focused on digital art and educational games.
I’m passionate about designing deep, cohesive gameplay systems — from core mechanics and progression to balancing and player-driven interactions. If you’re looking for an experienced and versatile game designer who can connect design intent with implementation, I’d be glad to collaborate.

Games

Akumi Wars
A turn-based RPG for PC featuring dozens of unique characters with a complex combat system with many different effects and combinations of strategies.
- Lead programmer and systems designer.
- Generalist programmer: gameplay, UI/UX, AI, Steam, etc.
- Designed game systems like: skills, combat, equipment, craft, stats, etc.

Arida: Backland's Awakening
The first game of Aoca Game Lab and my first game on Steam. A adventure/survival game with a political background about the lives of northeastern Brazilians during a civil war in the past in the dry and arid backlands of Brazil.
- Generalist game developer and gameplay programmer.
- Helped design the technical aspects of the game mechanics: survival, crafting, quests system, etc.
- Helped design the technical aspects of narrative elements like cutscenes, scenic views, etc.
- Generalist programmer: gameplay, graphics, UI/UX, AI, Steam, etc.

Hidden in Light
This is a Global Game Jam 2026 project. The theme was "Mask", and it was really interesting to explore it as a mechanic-driven concept: the character uses masks — both narratively and literally, as image masks inside the game world, revealing and hiding things. This was a non-competitive jam, but I am really happy with the final result!
- Game Design: designed core mechanics and levels.
- Programming: implemented the mechanics, UI, and controls.
- Art & Animation: designed, created, and animated the main character and other sprites.

PSI
Developed for GitHub Game Off 2025. Psi is a puzzle game inspired by quantum concepts, where observing elements alters their behavior. A single mechanic creates an emergent system of interactions, leading to simple yet surprising solutions!
- #12 in Innovation, and #38 in Gameplay (out of 700+ entries)
- Reached #80 Overall
- Game Design: Conceived the core puzzle mechanics, observer interactions, and overall game flow.
- Programming: Implemented game logic, systems, and interactions in Unity.
- Art & Pixel Art: Created all pixel art assets and visual gameplay elements for the game.

Deepnagogia
Game for Brackeys Game Jam 2023.2. Set in a futuristic world, this game features a technology that allows you to dive into a patient's mind to recover missing memories and address mental health issues. Players can control their depth to access different layers of the subconscious.
- Reached #12 in Innovation, #44 in theme interpretation (out of 800+ submissions).
- Reached #85 Overall.
- Game Design: Designed the world, characters, levels, and core mechanics.
- Programming: Developed the entire game logic and systems.
- Art & Animation: Created all sprites, animations, and visual effects.
- Sound: Collaborated with a voice actor for the character dialogue.

Gomma
Gomma — Developed for Ludum Dare 50 My goal with this project was to evoke a sense of solitude and the slow passage of time. The player finds themselves in a desolate world, accompanied only by a massive, slow-moving grub. To delay its inevitable departure, the player must cultivate plants to feed it—balancing the task of nourishment with the desire to keep their only companion a little while longer.
- Game Design: Conceptualized the world, characters, level design, and core mechanics.
- Programming: Implemented all gameplay systems and mechanics.
- Art & Animation: Created all sprites, character animations, and visual effects.
- Music: Composed the original theme song for the title screen.

Hunger For Dungeon
A strategic action reinterpretation of the classic Pac-Man. This project introduces RPG-style classes with unique abilities and stats, focusing on balancing combat mechanics within the traditional maze-crawler framework.
- Game Design: Conceptualized character classes, skill trees, and combat balancing based on the original Pac-Man loop.
- Level Design: Redesigned the classic layout to emphasize symmetry and tactical movement flow.
- AI Implementation: Engineered enemy and character behaviors using Graph Theory and advanced pathfinding algorithms.
- VFX: Developed custom particle systems and visual feedback for character abilities.
- Core Programming: Architected the game’s systems, including state management, collision logic, and ability execution.
*Disclaimer: Character assets were sourced from public repositories. If you are the original creator, please contact me for proper credit attribution!

Blank Knight
A technical prototype for a mobile action roguelite focused on classless character customization. The project explores a gear-based progression system where player builds are defined by equipment combinations rather than fixed roles, featuring procedural dungeons and persistent character growth.
- Game Design: Solely responsible for the game’s vision, mechanics, and combat balancing.
- Gameplay Development: Implemented core combat mechanics and the classless gear-based framework.
- Backend: Implemented basic user login and cloud-based data persistence for player progress.
- Art & Animation: Created original character sprites, animations, and visual effects.

At Sinergia Games
During my time in Sinergia Games, I worked on many small projects. Most of the projects were cultural games to teach about African Culture or personal development. That was the first game studio I worked in, and I had the chance to explore all stacks of game development. Unfortunately, those games are not available anymore due to business reasons.
- Game Design - I designed mechanics, characters and levels of some games
- Gameplay - I implemented game mechanics and systems
- UI - I designed and implemented the UI

Carrot VS Bad Food
This game was made in a game jam, in 2015. It was one of my first games and I really enjoyed making it. The team was me and an artist. We promised to remake this game, but I don't think it'll happen.
- Gameplay and UI - I implemented the mechanics, systems and UI
- Game Design - I design characters, levels and mechanics
- AI - I designed and implemented the behavior of enemies

Education
Bachelor of Science and Technology
- UFBA 2012 - 2016

Games and Gamification in Education (Education) - Postgraduate degree
- Centro Universitário Internacional UNINTER - 2025


Professional Experience
Akumi Wars
- 2021 - current job.
- Lead programmer and systems designer.
- I programmed the whole gameplay/UI and designed combat, skills, and craft systems.

Arida, Backland's Awekening - Aoca Game Lab
- 2016-2019.
- Generalist Game Developer.
- I worked on every aspect of the game.
- I programmed the core gameplay features.
- I helped design some systems such as quests, craft, survival, etc.

Odoya - Sinergia Games
- 2021.
- Gameplay Programmer.
- Game Designer.
- I designed the core mechanics and systems of the game.
- I programmed the main gameplay features of the game.

Sinergia Games
- 2014-2016.
- Generalist Game Developer.
- Assistant game designer.
- I worked on many casual cultural and educational games for mobile.
- I worked as a generalist indie developer, helping with code and game design in the projects.

SENAI CIMATEC/EMBRAER
- 2019.
- Augmented Reality Programmer.
- Worked with Hololens and Unity.
- I helped develop an AR tool for the maintenance of aircraft structures.
- Many graphics things and Math!

HESTIS
- 2017-2018.
- Graphics Programmer
- I helped develop a 3D visualization tool for X-BIN projects.
- A lot of Geometry and Algebra!
- Low-level rendering APIs and libraries.

Contact
If you wish to contact me, send me an e-mail:

DUARTULIO@GMAIL.COM
Also, feel free to check and follow me in my other social media:




