1989年11月17日，Hudson發布PCE遊戲《世界冒險》（ニュートピア/Neutopia），並隔年在TurboGrafx-16平台推出海外版。Wii Virtual Console和Wii U平台上有重製版本。操作和介面與任天堂的《塞爾達傳說》相當相似。該系列的第二代在1991年上市。

故事發生在繁榮的尼烏托邦（Neutopia），由奧羅拉公主（Aurora）的掌管下，人民過著和平的生活。世界分為陸地、地下、海洋和天空四個區域。某天，邪惡的達斯率領大軍佔領這片土地，綁架奧羅拉公主，並偷走維持和平繁榮的八枚古老勳章。年輕戰士傑薩塔(Jazeta)為解救公主，踏上一場冒險旅途。

與其他動作RPG遊戲類似，需要通過完成任務和解決問題來獲得道具，增強角色的力量，而非單純靠戰鬥取勝升級。每個關卡都隱藏著兩個勳章，需要進入地下迷宮中取得。

遊戲中的主要密技包括：

1.使用天空之鐘可獲得最強的劍，外面使用可消滅所有敵人。在迷宮中讓鈴聲響起，可找到隱藏門扉式樓梯，頭目和其他房間的門也會開啟。

2.輸入密碼「すづよたがひふづぬめつれ くけもりみだららやねおに」，即可攜帶三枚徽章，分別是地下、海、空，並擁有最強的劍和鎧甲。即使碰到迷宮的頭目也能輕鬆獲勝。

3.碰到提供密碼的老太太，不同於神殿老太太，她不會協助恢復體力。若在重設密碼後接續遊戲，老太太就會幫忙恢復體力，密碼輸入畫面會變成END。

4.輸入「づゆどいまあぬごおせ じゆかあふ てりづねすねおあん」密碼，即可擁有最多數量的46枚炸彈。注意若購買或撿拾炸彈，數量將變成8，最好在碰到修行僧之前將手上的炸彈用盡。

5.在出現兩種以上敵人時，先消滅最弱的後刻意留下最強的一個敵人，進行移動來切換畫面。回到原先的地方時，會發現敵人全部變成容易打倒的，不過不同的組合會導致不同的變化，有時敵人反而變強。

On November 17, 1989, Hudson released the PCE game "Neutopia" (ニュートピア), and the overseas version was launched on the TurboGrafx-16 platform the following year. There are remastered versions available on the Wii Virtual Console and Wii U platforms. The gameplay and interface are quite similar to Nintendo's "The Legend of Zelda" series. The second generation of this series was released in 1991.

The story is set in the prosperous utopia of Neutopia, where people live peaceful lives under the guardianship of Princess Aurora. The world is divided into four regions: land, underground, ocean, and sky. One day, the evil Dirth led a large army to occupy the land, kidnapping Princess Aurora and stealing the eight ancient medals that maintain peace and prosperity. A young warrior named Jazeta embarks on an adventurous journey to rescue the princess.

Similar to other action RPG games, players need to complete quests and solve problems to obtain items and enhance the character's abilities, rather than relying solely on combat for leveling up. Each level hides two medals, requiring entry into underground mazes to obtain.

Key cheats in the game include:

1.Using the Sky Bell grants access to the strongest sword, capable of eliminating all enemies when used outside. Ringing the bell in a dungeon reveals hidden doorways and stairs, opening doors to bosses and other rooms.

2.Entering the password "すづよたがひふづぬめつれ くけもりみだららやねおに" allows the player to carry three medals for underground, ocean, and sky regions, along with the strongest sword and armor. This makes defeating dungeon bosses easy.

3.Encountering an old lady providing passwords, unlike the temple old lady, she doesn't assist in restoring health. If the game is continued after resetting the password, the old lady will help in restoring health, and the password input screen will change to END.

4.Entering the password "づゆどいまあぬごおせ じゆかあふ てりづねすねおあん" grants the maximum quantity of 46 bombs. It's essential to deplete existing bombs before encountering the monk.

5.When facing two or more types of enemies, defeat the weakest first and deliberately leave the strongest one. Move around to switch screens. Returning to the original location will show all enemies becoming easily defeatable, but different combinations may result in various changes, and sometimes enemies become stronger.