Coral Plunge
A calm, one-thumb arcade game: pull back, aim and launch a pearl orb through living coral reefs.
The challenge
Aim-and-launch games are easy to learn and just as easy to make frustrating. The game needed physics that feel fair, a path the player can read before letting go, and levels that teach without a wall of instructions.
Our approach
The launch works like a slingshot: the orb flies opposite to the pull, and force grows the further the player stretches. A dashed drift line previews the path, so the gap in the coral can be lined up before release.
Reef walls are built from three materials. Soft coral gives way after a couple of hits, rock needs real force, and shell shatters at once. Mixing them gives each of the ten hand-built reefs its own puzzle, and a limited pocket of orbs per dive rewards reading the level first.
Key features
- One-thumb pull-to-aim controls with a pull meter
- Live dashed trajectory preview
- Ten hand-built reefs unlocked in sequence
- Soft coral, hard rock and brittle shell walls
- Limited orbs per dive and a leftover-orb bonus
- A per-reef score log and a built-in briefing
Private by design
The game runs fully offline with no ads, no sign-in and no accounts. Its Google Play data safety declaration states that no data is collected and none is shared with third parties.

Project facts
- Type
- Arcade game for Android
- Package name
- com.coral.plunge.reef.dive
- Publisher
- ECHO ALPHA LTD
Services involved
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