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EXPERIENCE
KATERINA
TUMAS
External Head of Game Design
External Head / Lead Game Designer for game teams / Advisor
Mobile games / publisher-facing / live projects
I join projects when you need senior-level decisions, clear direction, and product-focused thinking — without a full-time hire or long onboarding.
Send a request
Message me
The product has stalled despite multiple possible development paths
Sometimes the team needs Head-level decisions, but keeping a full-time Head in-house is not rational
The game is preparing for a publisher pitch, and it’s critical to know whether it truly fits the market
IN A SIMILAR
SITUATION
?
THEN YOU NEED AN EXTERNAL
HEAD / ADVISOR
Not every team needs a full-time Head. But almost every team needs Head-level decisions at critical moments.
And it’s most effective when it’s:
No hiring or onboarding required
No involvement in internal company politics
Focused on the product, not the role
Experience across different projects and markets
Strong senior-level expertise
No risk of losing the specialist or managing a long exit process
WHAT DO I DO IN SITUATIONS LIKE THIS?
I help
structure decisions
when the team lacks clarity or alignment
I break down chaotic discussions, separate root problems from symptoms, and guide the team toward concrete, well-justified decisions.
Now it’s clear where to move next.
I help define direction and resolve key
game design questions
that block progress
As a result, further decisions align with the project’s goals, development stage, and audience expectations.
I bring the product to a state that is clear to
the team, THE MARKET and the publisher
.
FORMATS OF WORK
ADVISOR
CONSULTATIONS & REVIEWS
— 1–3 hour sessions
When you need a fast external perspective and concrete answers.
Suitable for focused tasks and situations where it’s important to quickly understand the issue and make a decision without long-term involvement.
Analysis of a specific problem or question
Discussion of development options and risks
An external view of the project’s current state
Support in making one or several key decisions
SENSEI
TEAM WORK
— 2–4 calls per month + async support
When it’s important to restore focus, build shared understanding, or prepare the project for the next step.
I work with the team to structure discussions, resolve contradictions, and align decisions.
Helping designers or the entire team with specific tasks
Joint project review, its direction, and priorities
Shaping and communicating a shared vision and decision logic
Preparing the project for a publisher: what matters and where to focus
EXTERNAL HEAD
PROJECT SUPPORT
— Regular involvement: 4–8+ hours per week, 1–3 calls
When a project needs ongoing Head-level decisions and senior product oversight.
A format for situations where it’s important to regularly stay aligned on direction and make decisions at the product level.
Regular involvement in the project
Support in making key product and game design decisions
Guiding changes and adjusting direction
Working with the project as a complete product
HOW WE WORK TOGETHER
I
INTRODUCTORY CALL
A short introductory call. We discuss the project, context, and task to understand whether further collaboration makes sense and in what format.
Book a call
II
DEFINING THE REQUEST AND FOCUS
We clarify what exactly needs to be solved. We identify key questions, constraints, and the expected outcome.
III
CHOOSING THE WORK FORMAT
We determine the most effective way to move forward. Consultation, team work, or ongoing support — depending on the task and the project stage.
IV
WORKING WITH THE PROJECT
I join the project in the selected format. I help make decisions, define direction, and transfer the logic for further actions.
WHAT WILL CHANGE AS A RESULT OF MY WORK?
A clear direction and understandable next steps emerge
Decisions are made faster and backed by solid reasoning
The team starts speaking the same language
The product becomes competitive in the market and visible to publishers
The feeling of chaos and endless discussions disappears
12+
years in the industry
ROLES:
GD → Lead → Head → EXPERT
GAME GENRES:
Casual / hypercasual/
hypercore / MIDCORE
READY TO DISCUSS YOUR PROJECT?
Choose a convenient way to get in touch, then
briefly describe the context, the current situation, and the key question.
MESSAGE on Telegram
t.me/Gatamelata
Send an E-MAIL
artinlight.tass@gmail.com
KATERINA TUMAS
External Head of Game Design
Inside GameDev
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