One developer.
Six shipped products.
I design, build and publish mobile games and apps for Android - from the first sketch to the Google Play listing. Building engaging experiences and useful tools for everyday life.
Catalog
Last Wall Standing
last-wall-standing · idle defense
Build your army. Hold the wall.
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Castle Defender
castle-defender · tower defense
Pick your tactics, defend the keep.
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Symbol Rush: Match & Collect
symbol-rush · puzzle
Match symbols, collect cards, relax.
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Supply the Cities
supply-the-cities · logistics
Connect cities, grow supply chains.
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Medieval Runner
medieval-runner · endless runner
Run, jump, don't wake the guards.
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Costivo - Budget Planner
costivo · finance
Bills, subscriptions and budget in one place.
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Costivo - Budget Planner
Costivo is a personal finance app designed to help you stay in control of your money and never miss an important payment. Whether you're managing monthly bills, tracking subscriptions, or planning your household budget, Costivo keeps everything organized in one place.
- Bills & subscriptions. Track recurring payments and never miss a due date.
- Income & budget tracking. See what's coming in against what's planned.
- Reminders. Get nudged before a payment is due, not after.
- Statistics & forecasts. Understand spending trends and what's ahead.
- Calendar integration. Every payment lines up with your schedule.
- Store Financial Documents Attach photos of receipts, invoices, and bills directly from your camera or gallery.
Last Wall Standing — Idle Siege
Build and upgrade your army, strengthen your defenses, and survive increasingly difficult waves in this strategic idle defense game. Every siege gets a little harder than the last.
- Endless waves. Face wave after wave of enemies trying to break through your defenses.
- Upgrade your army. Improve your units, increase their power, and optimize your strategy.
- Strengthen the wall. Reinforce your defenses and prepare for massive assaults.
- Idle progression. Earn resources and watch your defense grow stronger over time.
Castle Defender
A tower-defense game where you choose attack tactics and develop the buildings available in your castle. Research new technologies, change your strategy, and do whatever it takes to win.
The Tactics option lets you constantly adjust how your turrets attack — the first enemy in range, the most recent arrival, or the one with the lowest or highest health. It opens up real planning, not just placement.
Symbol Rush: Match & Collect
Match symbols, beat levels, and collect unique cards to complete beautiful collections. Every level brings new challenges, and every chest hides a surprise. Simple, relaxing gameplay across tropical beaches and mountain lakes — can you become the ultimate Symbol Master?
- Pick-up-and-play. Match symbols and aim for the best score.
- Beautiful locations. Travel from tropical beaches to mountain lakes.
- Collectible cards. Complete full sets hidden inside chests.
Supply the Cities
Build supply chains, from simple routes to increasingly advanced networks. Develop your cities and watch them grow — produce new goods, unlock new levels, and manage the relationships between cities, each with its own needs and production. Some cities ask for more before they give back something unique.
Medieval Runner
A fast-paced medieval endless runner where heroes don't walk, they sprint past danger. Jump over rocks, dodge flying crows or bats, and avoid sleepy guards who forgot their shift ended yesterday.
Upgrade your hero to jump higher and survive longer with extra lives — or bounce so high you vanish into the clouds above the map. Each character comes with a unique bonus: some leap farther, others carry more lives, or sprint like knights running late for a duel.
Hi, I'm Mateusz.
My passion for technology and games inspired me to start creating my own projects. Over time, that passion grew beyond game development and expanded into building practical mobile applications.
Every project here ships solo - design, code, art direction, and the Play Store listing.
Today I work on both games and apps, combining creativity with technology to build engaging experiences and useful tools. Every project is a chance to learn something new and ship it to people around the world.
Let's talk.
Found a bug, have feedback? My inbox is open.