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2026Open Source

Neon Blob

Arcade game for iPhone

A neon arcade game for iPhone built on the agar.io idea: eat what is smaller, run from what is bigger. It adds auto-fire combat, bosses, a battle royale mode and upgrades by slot machine. Open source, native Swift with no third-party packages. No in-app purchases, coins are earned only by playing.

  • Swift
  • SwiftUI
  • SpriteKit
  • iOS
View on GitHub

Screenshots

  • Neon Blob: main menu with Survival, Battle Royale and Daily Run
  • Neon Blob: gameplay with glowing blobs, green rings mark prey, red rings mark threats
  • Neon Blob: slot machine spin for a level-up upgrade
  • Neon Blob: shop with talents and skins, paid for with coins earned in play

The game

  • Eat what is smaller, run from what is bigger: the core idea of agar.io.
  • Auto-fire combat and bosses.
  • Three modes: Survival, Battle Royale and Daily Run.
  • Level-up upgrades by slot machine.
  • A shop with talents and skins, paid for with coins earned in play. No in-app purchases.

Technology

  • Native Swift with SwiftUI and SpriteKit.
  • No third-party packages.
  • Open source, the code is on GitHub.

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