It's a grand search game where you walk around the vast and mysterious world of stars, as if you were in a dream, collecting numerous tools, musical instruments, important items, natural objects such as minerals, fossils, and shells, and listening to the stories of the inhabitants of the stars while searching for something you've lost.

The story has philosophical and spiritual elements.

The landscapes of the stars are diverse, and there are nearly 1,000 maps to walk around.

There are more than 200 background music songs and more than 200 sound effects made up of various musical instruments and natural sounds.

In addition to wandering around looking for things, on one planet,

you search for and photograph more than 2,000 species of creatures living in the natural environment

(all using real-world photos of animals and plants),

on another planet, you deliver many works of art such as paintings and ceramics to museums

(all using photos of real artworks),

on another planet, you walk through a mysterious world while listening to natural science explanations about the real world, ecosystems, and creatures.

In addition to the objective of finding things, there are many other addictive aspects to the game, such as capturing a wide variety of strangely shaped aquatic creatures that live underwater, reading real literary works such as poems and novels, cultivating pearls, and cutting gemstones. There is no combat. The game has been in production for over 10 years.