Yotyan, Unc Ball, and Star Cluster Ball are three names for one thing: a Chinese tabletop skill game (星罗球, xing luo qiu) that exploded on Douyin and livestreams. You launch a ball up a gently sloped table, gravity rolls it back, and you try to settle it in one of 21 scoring slots. Here is where the names come from, how the real game works, and how to play it free on your phone.
So what is Yotyan, actually?
Yotyan is a precision tabletop game from China. Players use a small launch tray to send a ball up an inclined table in an arc, gravity brings it back down, and the goal is to land it in high value slots while out-positioning an opponent. It rewards aim, touch, and a little strategy rather than strength or speed. The same game is known in Chinese as 星罗球 (Star Cluster Ball) and 摇天球 (romanized Yotyan), and it picked up the nickname Unc Ball among fans abroad.
Why does it have so many names?
It is one game wearing three jerseys, which is exactly why searches for "yotyan", "unc ball", and "star cluster ball" all lead to the same place:
- 星罗球 (xing luo qiu) is the most common Chinese name. It translates to Star Cluster Ball, after the star shaped scoring plates on the table.
- 摇天球 (yao tian qiu) is a second Chinese name. Romanized, it becomes YoTyan or Yotyan.
- Unc Ball (also written UncBall) is the viral English nickname, spread by international viewers and "Chinese Unc Ball" channels.
So if you have seen clips called Yotyan, Unc Ball, or Star Cluster Ball, you have been watching the same table.
How the real Yotyan table works
The physical game is a proper piece of kit. The headline specs:
| Table | About 2.35 m by 1.2 m, smooth marble-style surface |
|---|---|
| Incline | The surface slopes upward from a serve line (around 5 degrees) |
| Plates | Three star plates: Venus, Mars, and Jupiter |
| Slots | 7 slots per plate, 21 scoring slots in total |
| Balls | 24 balls in two colors (12 each), about 125 g per ball |
| Launch | A shaker or launch tray flicks the ball up the slope in an arc |
Scoring is where the strategy lives:
- Each plate carries a base value, roughly 1 to 3 points as you move up the table.
- Bonuses reward skill, for example a touching ball (times 2) and a sole occupied slot (times 3).
- Common formats include a Follow-up match (clear one plate before advancing) and a Sequence match (choose which plate to open first).
Why Yotyan went viral
Star Cluster Ball took off on Douyin (Chinese TikTok) and livestream channels, and it is easy to see why. The rules click in seconds, the balls drop with a satisfying clack, and head to head matches stay tense down to the last shot. It is the rare game that is fun to play and fun to just watch, which is rocket fuel for short video.
How to play Yotyan and Unc Ball on your phone
You do not need a two meter table to get the feel of it. Tilt Pool: Star Cluster Ball is a faithful mobile recreation of Yotyan, Unc Ball, and Star Cluster Ball. You flick the ball up the same inclined table and aim for one of the 21 slots, with the bell at the top and the same risk and reward of going for the higher plates.
- Two control styles: drag back like a slingshot, or glide a dome over the table to wind up your aim.
- Three modes: Solo for the perfect run, Endless for the high score, and 1v1 Local pass and play against a friend.
- Free, on both stores: available on iOS and Android.
The short version
- Yotyan, Unc Ball, and Star Cluster Ball (星罗球) are one Chinese tabletop game.
- You launch a ball up an inclined table and land it across 21 slots on three plates.
- It went viral on Douyin because it is simple, satisfying, and tense to watch.
- Tilt Pool: Star Cluster Ball brings it to your phone, free on iOS and Android.
Frequently asked questions
Are Yotyan, Unc Ball, and Star Cluster Ball the same game?
Yes. They are different names for the same Chinese tabletop game. Its Chinese names are 星罗球 (xing luo qiu), which translates to Star Cluster Ball, and 摇天球, romanized as Yotyan. Unc Ball, or UncBall, is the nickname that spread among international fans and Chinese Unc Ball channels.
What is the Chinese name for Unc Ball?
The main Chinese name is 星罗球 (xing luo qiu), literally Star Cluster Ball, named for the star plates on the table. It is also called 摇天球, which is where the romanized name Yotyan comes from.
Is there a Yotyan or Unc Ball app?
Yes. Tilt Pool: Star Cluster Ball recreates the Yotyan, Unc Ball, and Star Cluster Ball table faithfully on your phone. You flick the ball up the inclined table and land it in one of 21 scoring slots. It is free on the App Store and Google Play.
How do you score in Star Cluster Ball?
The scoring zone has three star plates, Venus, Mars, and Jupiter, with 7 slots each, for 21 scoring slots in total. Each plate is worth a base of 1 to 3 points, with bonuses such as a touching ball (times 2) and a sole occupied slot (times 3).
