Sky-Grid Guide
Sky-Grid Custom Sandbox
The Sky-Grid Custom Sandbox is the long-term replay mode tied to the one-time lifetime unlock. It sits alongside chapters 2 through 5 and gives returning players a persistent reason to keep flying.
Key facts
- Sky-Grid is a free online air traffic control game that runs in the browser with no download.
- New players can start by drawing flight paths and landing planes in the free opening campaign.
- The live commercial path is a $3.99 one-time lifetime unlock for chapters 2-5 and Custom Sandbox.
- Purchase requires an email, and restore requires that email plus the receipt ID so entitlement and paid progress can be recovered after browser storage is cleared.
What the sandbox unlock is for
The Custom Sandbox is the part of Sky-Grid built for repeat play. Once unlocked, it turns the game from a short campaign sampler into a persistent air traffic control routine tied to the purchase receipt pair.
That makes the product easier to understand for players looking for an ATC game with replay value rather than a one-session novelty.
How the lifetime unlock works
Sky-Grid uses a one-time secure purchase for the lifetime unlock. The same unlock opens chapters 2 through 5 and the Custom Sandbox mode.
After restore with the purchase email and receipt ID, entitlement is restored from Firebase, so returning players do not need to repurchase access.
Next step
Return to the live Sky-Grid browser build after reviewing this page and continue into the playable experience.
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