Vein: Dungeon Ecosystem

Dig, Grow, Defend the Core

Free · Designed for iPad. Not verified for macOS.

Every tunnel becomes a battlefield. Grow a living dungeon and defend its core across 12 locations and 36 stages. The tunnels you dig become the battlefield. The ecosystem you grow becomes your defense. Vein is an ecosystem-driven roguelike defense game. Excavate an underground dungeon, raise autonomous creatures, and stop invading squads from carrying your Dungeon Core back to the surface. BUILD A LIVING DUNGEON Dig new routes, connect the Core to magic walls, and shape a habitat where creatures feed, move, grow, and fight according to their own behavior. DEFEND THE CORE Read each invading squad's roles and classes, then use terrain, creatures, facilities, and carefully timed interventions to break their route to the Core. EVOLVE EVERY RUN Choose one of three upgrades when your dungeon levels up. Strengthen creatures, expand the magic vein, improve the environment, and create a different strategy each run. EXPLORE A COMPLETE CAMPAIGN Fight through 12 distinct locations, 36 stages, and 180 assaults. Settle your run, carry earned DP forward, summon creature cards, and begin the next dungeon with new possibilities. FEATURES • Real-time ecosystem and dungeon defense • Route-shaping excavation and Core placement • Creatures with different needs, movement, and combat behavior • Invaders with distinct roles, classes, and priorities • Three-choice roguelike upgrades • Creature codex, rare forms, awakening, and summons • Pixel-art worlds that change from surface to underground Dig deeper. Grow stronger. Do not let them take the Core.

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- Revamped Home creature summoning with cinematic videos and clearer normal and rare summon sequences. - Added an option to unlock 2x gameplay speed by watching an ad. - Creature awakening ranks now strengthen maximum HP and species-specific abilities. - Improved the presentation of items, surface visitors, and in-game ad sequences. - Fixed display and progression issues, including the defeat check when a Dungeon Core is carried away.

Version 1.3

The developer, Hiroyuki Sonozuka, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Location
    • User Content
    • Identifiers
    • Usage Data

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Seller
  • Hiroyuki Sonozuka
Size
  • 332 MB
Category
  • Strategy
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
  • English and Japanese
Age Rating
13+
  • 13+
  • Learn More
  • Frequent
    Cartoon or Fantasy Violence
    Guns or Other Weapons

    Contains
    Advertising
Copyright
  • © 2026 Hiroyuki Sonozuka
  • Developer Website
  • Privacy Policy

    • More by Hiroyuki Sonozuka