Casual multiplayer and branching systems too! Dungeon exploration and mapping idle RPG “UNDERDEEP” launches its Steam page

It's a captivating game that lets you create custom builds by combining jobs and skills, such as combat classes, crafting classes, and underworld professions.

Culture Indie Games
Featuring a casual multi-path and branching system! “UNDERDEEP,” an idle RPG combining dungeon exploration and mapping, has launched its Steam page
Featuring a casual multi-path and branching system! “UNDERDEEP,” an idle RPG combining dungeon exploration and mapping, has launched its Steam page
  • Featuring a casual multi-path and branching system! “UNDERDEEP,” an idle RPG combining dungeon exploration and mapping, has launched its Steam page
  • Featuring a casual multi-path and branching system! “UNDERDEEP,” an idle RPG combining dungeon exploration and mapping, has launched its Steam page
  • Featuring a casual multi-path and branching system! “UNDERDEEP,” an idle RPG combining dungeon exploration and mapping, has launched its Steam page
  • Featuring a casual multi-path and branching system! “UNDERDEEP,” an idle RPG combining dungeon exploration and mapping, has launched its Steam page
  • Featuring a casual multi-path and branching system!

Publisher Hakony has launched the Steam store page for "UNDERDEEP," an idle RPG where players can enjoy dungeon exploration and mapping.

An idle RPG where you can enjoy dungeon exploration and mapping

*UNDERDEEP* is an idle RPG—said to be influenced by *Wizardry* and *Artes Note*—that features engaging dungeon exploration and mapping.

The game automatically records the locations you visit, and you can place your own markers on the map. You start as the “Newbie” class, and as you gain experience, you can evolve into various other classes, such as combat classes, crafting classes, rulers, and underworld figures—offering a rich progression system.

The game is packed with classic RPG elements, such as building character builds through skill combinations and collecting over 500 types of items, including weapons and armor.

You can also set a strategy in advance and have your characters explore automatically, allowing you to let the game run in the background while you’re busy with other tasks on your PC to automatically collect items and more.

Inside dungeons, you can engage in light asynchronous multiplayer by encountering characters created by other players. Furthermore, the game features branching paths where your character’s “Karma” changes based on whether you act for good or evil, making for a surprisingly deep gameplay experience.


"UNDERDEEP" is scheduled for release in the first quarter of 2026.


By タケダだいゆう