1989年3月4日，由Atlus製作，Hudson負責發行的PCE遊戲《魔洞歷險記/魔洞戰記》（ダンジョンエクスプローラー / Dungeon Explorer）。同年在美國的TurboGrafx-16推出，之後移植到Sega CD、Wii Console及PS Network。

在瓦魯特世界的科妮莉亞國王擔心邪神納塔斯的再次復活將會帶來可怕的戰爭。受到託付的勇者們於是深入多個魔洞尋找水晶，企圖發現奧拉石的下落。當完成任務後才發現原來國王就是納塔斯，奧拉石也被偷走。這時候一位名為猶太的護衛背叛主角們，只有擊敗納塔斯才能迎來和平。

透過十字鍵就能移動，同時按R+S就能重啟遊戲。I是攻擊跟決定，II是使用魔法跟取消。S是選擇魔法，R是顯示狀態。透過轉接器就能有五人進行遊戲。主要的任務是突破迷宮設計的眾多陷阱，打倒敵人後持續前進。只要升級就能提升攻擊力、力量、敏捷性和智力。

一開始可以選擇的職業有八種，分別是戰士、小偷、術士、女巫、主教、精靈、吟遊詩人或侏儒。之後可以解鎖其他職業例如公主及哈米特。每個角色可使用的黑白魔法都不同，詩人可以用黑魔法更改音樂，主教可治癒附近的夥伴。遊戲採用密碼輸入方式續關，水晶有四種顏色，橙色代表敏捷，綠色代表智力，紫色代表力量，藍色代表攻擊力。

每個地下城跟區域與其他樓層相連，沿路會有許多怪物，需要透過攻擊跟魔法來打敗。摧毀發電機才能徹底讓敵人消失。擊敗最底層的頭目就算勝利。完成一個任務可與國王碰面，並前往下個指定的洞穴。

遊戲中的主要密技包括：

1.輸入「DEBDE DEBDA」的密碼後，按開始和I，會出現密碼錯誤的訊息。再按II，就能看到角色選擇的畫面。

操作完畢後，將角色移動到阿魯迪城周邊的樹木上，就可以挑選關卡。密碼產生的角色相當強大，血量超過500以上，移動速度快，所有數據最高，甚至連障礙物都可以穿過。

在第五關遇到頭目殺人虎時，可以選擇不要戰鬥，往旁邊或是上方逃竄，這樣就可以直接獲勝。抵達最終頭目的地方，將角色與頭目進行重疊似的移動，就會看到部分結局。

2.想要獨自全破會有很高的難度，這時可以輸入密碼「AEPAJ-DPIAA」，就能創造出19等級的戰士。攻擊力特別強大，如用黑魔法也可以輕鬆擊敗眾多敵人。遊戲開始是兩人進行，之後想單獨冒險，可以讓同伴先掛掉即可。

3.輸入「JBBNJ HDCOG」的密碼，可以在遊戲初期就可使用公主。打「IMGAJ MDPAI」的密碼，可以創造出幾乎是無敵的角色。

4.當標題畫面出現時，按I可以看到角色的基本資料，按II則會出現道具的介紹。

5.想要自由控制飛刀的丟擲方向，輸入「HOMINGAAAA」的密碼。雖然會跑出錯誤的訊息，但只要按II就能持續遊戲。

6.想要更換角色的名稱，輸入「CHECK NAME」的密碼後按I，就可以換名。

7.如果輸入「NEC」的密碼，有些地方會變成NEC之館。

On March 4, 1989, the PCE game "Dungeon Explorer" (ダンジョンエクスプローラー ) was developed by Atlus and published by Hudson. It was initially released on TurboGrafx-16 in the United States in the same year and later ported to Sega CD, Wii Console, and PS Network.

In the world of Walurt, King Cornelius is worried that the resurrection of the evil god Natas will bring a terrible war. The entrusted heroes delve into multiple dungeons to find crystals, attempting to discover the whereabouts of the Aura Stone. Upon completing the mission, they discover that the king himself is Natas, and the Aura Stone has been stolen. A Jewish guard named Yu Tai betrays the main characters, and only by defeating Natas can peace be restored.

Movement is achieved through the directional pad, and pressing R + S restarts the game. The attack and decision functions are assigned to I, while II is used for magic and canceling. S is for selecting magic, and R is for displaying status. With an adapter, up to five people can play the game. The main mission involves overcoming numerous traps in dungeon design, defeating enemies, and progressing forward. Upgrading allows for improvements in attack power, strength, agility, and intelligence.

At the beginning, players can choose from eight professions: warrior, thief, sorcerer, witch, bishop, elf, bard, or gnome. Later, other professions like princess and hamlet can be unlocked. Each character has different black and white magic. Bards can use black magic to change the music, and bishops can heal nearby companions. The game uses a password input system to continue, and crystals come in four colors: orange for agility, green for intelligence, purple for strength, and blue for attack power.

Each dungeon and area are connected to other floors, with many monsters along the way that need to be defeated using attacks and magic. Destroying generators is necessary to completely eliminate enemies. Victory is achieved by defeating the boss on the lowest level. Completing a mission allows players to meet with the king and proceed to the next designated cave.

Some key cheats in the game include:

1.Entering the password "DEBDE DEBDA" and pressing start and I will display a password error message. Pressing II will then show the character selection screen. After completing the operation, move the character to the trees around Aludi City to choose a level.

Characters generated by passwords are quite powerful, with over 500 health, fast movement speed, maximum data in all aspects, and the ability to pass through obstacles.

During the encounter with the boss Killing Tiger in the fifth level, players can choose not to fight and escape to the side or above. This allows for a direct victory. Arriving at the final boss's location and moving the character in an overlapping manner with the boss will reveal certain endings.

2.Wanting to complete the game alone has high difficulty. Entering the password "AEPAJ-DPIAA" creates a level 19 warrior. The attack power is particularly strong, and using black magic can easily defeat many enemies. The game starts with two players, and later, for solo adventures, companions can be temporarily dropped.

3.Entering the password "JBBNJ HDCOG" allows the use of the princess early in the game. Typing "IMGAJ MDPAI" creates a character that is almost invincible.

4.When the title screen appears, pressing I displays the character's basic information, and pressing II shows the introduction of items.

5.Wanting to freely control the direction of the throwing knives, entering the password "HOMINGAAAA" will generate an error message. However, pressing II will allow the game to continue.

6.Wanting to change the character's name, entering the password "CHECK NAME" and pressing I allows for a name change.

7.If entering the password "NEC," some places will become NEC Mansions.