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Story

The kingdom faces a dire threat from "tentacles," monstrous entities that emerge from underground to abduct people. These creatures have systematically overtaken dungeons across the land, prompting the kingdom's elite to confront them.

Players must venture into these procedurally generated dungeons to battle the threat. However, women captured by the tentacles within the Void Dungeon face a fate described as worse than death.

Gameplay

NULL DUN features roguelike deck-building mechanics where players explore dungeons, collect cards, and engage in turn-based combat. The game includes management elements.

Content notes

The game's 18+ Adult Content DLC replaces eight story scenes with explicit R18 versions, including new CGs.

Features

  • Procedurally generated dungeons for varied playthroughs.
  • Deck-building system with a wide array of cards.
  • Female protagonist in a fantasy setting.
  • Controller support with XInput layout.
  • Custom Dungeon feature allows users to edit and publish.
  • Settings screen reorganized with tabs for better navigation.

Updates

v1.2.0

  • Reorganized Settings screen into tabs (General / Help / Contact).
  • Added a fullscreen toggle.
  • Keyboard settings accessible from in-dungeon settings.
  • Revamped How to Play help and added Steam discussion link.
  • Added confirmation dialog to Quit button on title screen.
  • Adjusted attack power of the first-area boss (Golem).
  • Adult DLC "NULL DUN - 18+ Adult Content" released, free for base game owners.
  • Eight main game story scenes replaced with R18 versions in DLC.
  • Newly drawn R18 CGs with 6-language subtitles included in DLC.
  • R18 scenes automatically switch and are replayable from gallery after DLC installation.

v1.1.0

  • Added "Allow Copying" to Custom Dungeons for subscribers.
  • BGM and floor themes can be set per floor range.
  • Title screen music can be chosen.
  • Fixed "Divine Bind" card affecting wrong area.
  • Fixed other issues in Custom Card editor.

v1.0.4

  • Added gamepad (controller) support.
  • On-screen input hints shown per screen, auto-switching.
  • Built for XInput (Xbox) layout, also works with Steam Input.

v1.0.3

  • Added key rebinding options (Settings screen).
  • Fixed bug where boss-floor intro skip could advance past final floor.
  • Fixed bug where HP wouldn't recover after clearing a boss floor.
  • Fixed bug where enemies took no damage with auto-attack spam.

v1.0.2

Bug fixes.

v1.0.1

  • Custom Dungeon feature enhancements.
  • Other bug fixes.

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