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 runs directly in the browser and starts with a free opening campaign.
- The live commercial path is a $3.99 one-time lifetime unlock for chapters 2-5 and Custom Sandbox.
- Google sign-in is the only purchase and restore path, so entitlement and campaign progress stay on one account.
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 same account.
That makes the product easier to understand for searchers looking for an ATC simulator 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 sign-in, 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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