Star Tunnel 3D
Drag anywhere to steer. Fly through the rings!

STAR TUNNEL 3D

Do you have red-green 3D glasses? Red-cyan glasses work too.
You can change this any time from the menu.

3D GLASSES

Check the 3D

With the glasses on, the gem should float out in front of the screen, the ring should sit on the screen and the rock should be far away inside it. If it looks inside out, swap the eyes.

How deep?

Less depth is easier on the eyes. More depth pops out more.

1. Hide the green bar

Put the glasses on and cover the eye behind the green lens, so you look only through the red lens. Slide left until the green bar disappears.

2. Hide the red bar

Now cover the eye behind the red lens, so you look only through the green lens. Slide left until the red bar disappears.
3D mode is just a fun way to play. If your eyes feel tired, take a break or play without glasses.

HOW TO PLAY

  1. Put your finger anywhere on the screen and slide it. Your ship moves the same way, so your finger never hides it. On a computer, use the arrow keys or W A S D.
  2. Fly through the ⭕ rings. Get 7 out of 10 rings for ⭐⭐ and 9 out of 10 for ⭐⭐⭐.
  3. Grab 💎 gems and spend them in the Hangar on new ships, extra hearts and a gem magnet.
  4. Dodge the rocks! In the Space Station, fly through the hole in each wall and stay away from the spinning bars. Every bump costs a ❤️. Lose them all and you crash.
  5. With red-green glasses, things far away look deep inside the screen, and rocks you fly past pop right out at you. Use the depth to tell when a ring is about to reach your ship.
  6. Beat level 10 to open Endless mode: how far can you fly?

HOW 3D WORKS

  1. Try this: hold up your thumb, close one eye, then swap eyes. Your thumb jumps! Your eyes are about 6 cm apart, so each one sees the world from a slightly different place.
  2. Your brain compares the two pictures. Something close jumps a lot between your eyes and something far away hardly jumps at all. That tells your brain how far away things are. This is called stereo vision.
  3. Star Tunnel draws the tunnel twice, from two cameras a little apart, like two eyes: one picture in red and one in green.
  4. The red lens lets red light through and blocks green, so through it the green picture looks dark and disappears. The green lens does the opposite. So each eye only gets its own picture, and your brain joins them into one 3D tunnel.
  5. Your ship is drawn in the same place in both pictures, so it sits right on the screen. Far rings are drawn a little apart, so they look deep inside the screen. Rocks behind your ship are drawn the other way round, so they pop out towards you.
  6. People have made red and green 3D pictures like this since the 1850s, long before 3D films.

LEVEL CLEAR!