Heartbeats

Small games with a pulse.

An independent studio making colorful, quick-to-love puzzle games for your phone.

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Our apps

Merge Potion Flood Kohta
What we make

Merge Potion: Idle Alchemy

Merge Potion Remastered
Merge Potion: Idle AlchemyRemastered

The original was a Google Play Game of the Week. This one is rebuilt from scratch: merge potions into stronger brews, upgrade your cauldron, and watch the gold pour in, even while you are away.

  • 🧪Merge and discover. Combine identical potions into rarer ones. Over 50 to find, from plain herb water to brews no cauldron can hold.
  • 💰Gold while you are away. Your potions keep earning offline. Come back to a full vault, collect, and carry on brewing.
  • 🔁Rebirth and climb. Finish a run, bank permanent bonuses, start again smarter. Then race the world on First Brew and Fastest Brew.
  • ⚗️Upgrade the shop. Better recipes, faster brewing, doubled yields, lucky bubbles, and boosts worth saving.
  • 📵Ads only if you want them. Nothing interrupts you. Every ad is optional and you decide.
Get it on Google Play
App Store version coming soon
A full Merge Potion board earning 218 gold per second
Potions merging on the hex board
Merge your brews
The Vault screen showing offline earnings and Time Warp
Collect offline gold
The upgrade menu
Upgrade the shop
A fully stocked board
Grow your income

Flood

Flood the grid! Spread your color across the board before you run out of turns. A color puzzle that's easy to learn and devious to master.

  • 🌊Endless Campaign. Grids grow, patterns deepen, the challenge never stops.
  • ⚔️Online Multiplayer. Go head-to-head and flood the board first to win.
  • 🏆Daily Boards & Leaderboards. Three fresh boards a day; climb the global ranks.
  • 🛠️Custom Level Editor. Build and play your own puzzles.
  • 🎁Daily Tasks & Bonuses. Complete tasks, earn rewards, keep progressing.
Download on the App Store Get it on Google Play
Flood online multiplayer match
Flood the board
Flood the board
Online multiplayer
Play online
Daily leaderboards
Daily leaderboards
Train your brain
Train your brain
Kohta. Soon. Visualized. Minimal timers for the dates that matter.

Minimal timers for the dates that matter. Beautiful, private, and clean. Kohta turns every upcoming date into a calm, visual countdown.

  • Unlimited timers & groups. Organise every date that matters, your way.
  • Every theme, including Pro. Light, Dusk, Vivid and more.
  • Private by design. No ads, no accounts, no tracking. Your data stays on your device.
Get it on Google Play
App Store version coming soon
The studio

A one-person workshop.

23 Heartbeats is the game studio of Alfred Stanzl, based in Vienna. Small, hand-built games made with care, from the first pixel to the last playtest.

Say hello: contact@23heartbeats.com