katerina tumas
Lead / Head of Game Design
Product-focused game development
Selected game projects and product case studies from 12+ years in mobile game development.
Game designer
Zoocraft
CRETIVE MOBILE
More than 3 years of work on this project. Almost every feature has passed through my hands during this time. I was mainly responsible for MONETIZATION in the game, SOCIAL direction, INNOVATIONS and mini-games.
The most notable features of my authorship are:
- 5-in-1 object merging (saving game performance)
- Oceanarium (saving performance and space)
- Mini-games for taking care of the zoo (daily routine)
- Nursery (daily routine)
- Pearls (engaging non-paying players)
- Curiosity Shop and rubies (increase average check)
- Walking decorations (increase average check)
- Filmmaker (advertising as entertainment)
- Quiz (loyalty increase)
- Visiting Friends Zoos and Finding (socialization)
Just Zoo it! Build your own unique zoo, exhibit more than 200 creatures, breed cute animal babies and discover new species by making genetic experiments.
Team Lead & Game Designer
Wildscapes
PLAYRIX
Under my leadership was a mini team with a full stack of developers capable of producing a finished product. At that time the game was at an early stage after release, so my team and a few others were busy filling the game with old, tried-and-true features from other projects. I came to the project as not just a TEAM LEAD, but as a game designer - INNOVATOR. The task of implementing innovations in adapted features without major changes was not easy, but I managed it.
Ways I've used to do it:
- Developing an adapted interface based on current research from large companies that are UI/UIX experts
- "Tricky" surveys of the target audience when choosing metaphors for adapted features, which allowed to get the necessary information without revealing the essence of the feature
- New metaphors for the selected feature were selected in such a way that they were not only visually appealing, suitable in meaning and compliant with the requirements of the feature, but also allowed to learn something new, increase erudition and/or surprise players (for example, everyone knows bananas, but only few people have seen them blossom)
Welcome to Wildscapes – the new hit in the Scapes™ series by Playrix! Create your dream zoo with dozens of adorable animals by solving colorful puzzles!
Build spacious enclosures for animals and make your zoo visitor-friendly with cafes, fountains, playgrounds, hangout spots, and more! Learn about species from all over the world and create the best zoo ever! Ready for a wild ride? Then hop on!
Analyst & Game Designer
Nitro Nation
CRETIVE MOBILE
I've been working with this project for a long time in different roles. From the very beginning of development I was involved in GAME ANALYTICS and PLAYTESTS. I'm most proud of a massive research, where the analytics department under my supervision managed to increase profits for the game by 30% by conducting AB-tests using SWRVE.
When I moved to the position of GAME DESIGNER, I helped in the development of some features and also worked on the creation of Nitro Nation 2.0 concepts in accordance with current trends, players' wishes and on the basis of deep analysis of the current version of the game and its main competitors.
My tasks on the project in the role of an analyst:
- Creating an extensive analytics system including dependencies and queues (such as funnels)
- Tracking metrics and informing developers in a timely manner if action needs to be taken (and what action it should be)
- Deep and superficial analysis of gameplay and all features or decisions in the game
- Investigating mysterious data and finding out the causes
- Making game design suggestions to fix the metrics
- Presenting the game at conferences
Nitro Nation takes drag and drift racing to the next level with a 3D world full of stunning new customizable cars, unique racing physics, and unlimited in-depth gameplay that guarantees racers an unforgettable experience — all on your mobile device!
Mahjong treasure quest
GLERA GAMES
puzzle, board game
Lead Game Designer
  • Aligned game design and analytics teams through structured communication
  • Built a future-facing content backlog and roadmap
  • Mentored designers in documentation and workflow standards
New adventures of the young sorceress Sophie and her loyal friend, the talking cat Oliver! Together they set off on an exciting journey to the levitating isles of the Magic World and Mahjong levels.
Secret Seeker
playgendary
hyper casual
Product Owner and Game Designer
  • Led a cross-functional team to develop a game from initial concept to production
  • Established internal team communication and task ownership for game designers
  • Coordinated game design work with other departments
Catch people in intimate situations to find their dirty secrets. Train this way your attention and develop your imagination.
Last Inua
CRETIVE MOBILE
platformer, adventure
Producer and Analyst
  • Conducted game and competitive analysis, including playtests
  • Evaluated mechanics and provided data-driven design recommendations
  • Supported decision-making on next development steps
Last Inua is an immersive and emotional, award winning 2D platform adventure game developed by Glowforth. Last Inua tells the tale of an Inuit family’s fight for survival against a fearsome demon and the harsh elements of the mythical Arctic.
Drag Racing
CRETIVE MOBILE
racing
Analyst and Game Designer
Drag Racing is the classic nitro fuelled racing game for Android!
Cyberline Racing
CRETIVE MOBILE
racing, survival
Game Analyst
It’s 2086. The world has been brought to its knees by the greed of humankind. The political and economic breakdown has forged a path of violence and outlaws rule the world. The world now idolizes MOTORHEART, a heartless racer, who runs a breathtaking show – a race-to-the-death.
Pocket Tower
CRETIVE MOBILE
puzzle, board game
Game Analyst
Create the skyscraper of your dream! Start building and get rich! Build new floors, start businesses, hire workers, invite visitors, trade, chat and compete! Take on fun challenges to shape your business empire.
Other Professional Work
  • Fantasy writer and narrative designer.
  • Game design expert and consultant.