Spaceteam is a co-op party game about shouting sci-fi technobabble at your friends.
Once you're all connected, you beam up to a spaceship and work as a team to keep it flying for as long as possible by pushing buttons and switches with names like "Thorium Eigentrap" and "Steam-jointed Plating". Everyone has a different set of controls, and they change every level. The game gives instructions *to your teammates*, so you have to coordinate (i.e. shout) to figure out who has what before the timer runs out.
Meanwhile the ship is falling apart: the panels are sparking and smoking, getting covered in slime, and falling off. You have to avoid wormholes and asteroids (by shaking your phone), and sometimes you'll encounter anomalies that add extra twists, like replacing the control names with symbols.
When your team finally succumbs to the pressure, your ship is engulfed in a giant fireball and the game gives you a medal.