About and contact
Katla · Fold Games is a set of free browser games that turn the hinge of a foldable phone into a game controller. From basketball shots to a trebuchet, from origami to a rowing race, folding and opening the phone is the core move of every game.
Why foldable phones?
Phones such as the Galaxy Z Fold and Z Flip have a hinge in the middle. Most apps only use it to make the screen bigger or smaller. We think of the hinge as an arm, a pump, bellows, a trap or a spring: how far you fold, how fast you open and where you stop all mean something real inside the game. That is why most of the games are played by moving the top half while the bottom half rests on a table.
How do the games work?
The games read the hinge angle from the phone's motion sensor. When one half stays still on the table and the other lifts, the tilt of the half holding the sensor is turned into a fold angle in degrees. Each game uses that angle, how fast it changes and where the phone last came to rest in its own way. To check that the angle is read correctly, use the Fold Meter tool.
Every game has its own guide page explaining the rules, controls and tips step by step. You can reach the guides from the bottom of the game list or from the "How to play and tips" link on each game's start card.
Which phones can I play on?
- The best experience is on foldable Android phones with an up-to-date Chrome or Samsung Internet browser.
- Phones that don't fold work too: tilt the phone with your wrist instead of moving the top half; many games can also be played by tapping.
- Motion sensors only work over a secure connection (https). Some browsers ask you to tap once to allow sensor access.
- Add Katla to your Home screen and it opens full screen like an app; games you have opened once also work offline.
Free, no account
All games are free; there is no sign-up, account or download. Your scores, settings and Origami gallery are stored only in your own browser. We cover our costs with ads shown below the games; if you reject ads, every game still works. Details: Privacy and ads.
Languages
The games and guides are available in English, Spanish and Turkish. The language follows your browser; you can change it in Settings on the home page.
Who makes it?
Katla · Fold Games is an independent project published on pucks.tech and developed in Türkiye. The games are updated continuously based on players' feedback; new games appear on the home page with a "New" label.
Contact
If you find a bug, if a control doesn't work on your phone or if you have an idea for a new game, write to us. When reporting a bug, telling us your phone model and browser helps us find the problem much faster.
support@pucks.tech