Gem Tower Defense Mobile

Draft Towers. Build Mazes.

$2.99 · Designed for iPad. Not verified for macOS.

Draft towers and build mazes to control enemy paths. Every run is different. Outsmart waves with strategy, not luck. If you know, you know. Build the maze. Draft your gems. Survive all 50 waves. Gem Tower Defense Mobile is a retro reimagining of the classic GemTD custom-map experience, rebuilt from the ground up for touchscreens. Every gem you place is both a tower and part of your maze. Shape enemy routes, create powerful choke points, and keep each wave under fire for as long as possible. One clever placement can transform your entire defense. Each draft brings a new decision. Keep the gem, reroll it, or combine matching gems into stronger towers. Follow gem templates to work toward powerful combinations, or adapt your strategy when the pieces you need refuse to appear. No two defenses play exactly alike. Study each gem’s damage, range, attack speed, targeting, and special effects. Mix colors and abilities to cover weak points, slow dangerous enemies, and prepare for the next wave. When every tile counts, use the magnifier for precise placement. FEATURES • Survive 50 increasingly challenging waves • Build winding mazes while placing your towers • Draft, keep, reroll, and combine gems • Follow templates to create advanced gem combinations • Discover gems with distinct stats and special effects • Defend against different enemy types and threats • Use the magnifier for precise, touch-friendly building • Enjoy crisp retro pixel art inspired by classic custom-map strategy games Every run is a new strategy puzzle. Will you chase a rare combination, reinforce the maze you already have, or gamble on one more draft? Build carefully. Combine wisely. Defend the path.

Ratings & Reviews

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• Fixed a bug where rerolling a drafted gem could leave the draft stuck with no way to roll the replacement rock. (Thanks MTFives!) • Combine options now group into a single COMBINE (X) menu so every button fits on screen. • Fixed the leaderboard screen so all ten entries and the back button fit without overlapping. • Minor text fixes and improvements.

Version 1.0.3

The developer, Jameson DeVol, 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 Not Collected

    The developer does not collect any data from this app.

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    Accessibility

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

    Information

    Seller
    • Jameson DeVol
    Size
    • 12.9 MB
    Category
    • Strategy
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • iPad
      Requires iPadOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    • English
    Age Rating
    4+
    Copyright
    • © 2026 Lilybean Games
  • Developer Website
  • Privacy Policy

    • Supports

    • Game Center

      Discover new games and play with friends. This game also features leaderboards.

    • Family Sharing

      Up to six family members can use this app with Family Sharing enabled.