Is Sandbox completely free?

Yes. The catalog is listed under a Free license, and browsing the 249 titles doesn't require a paid subscription. Individual games may have their own terms, so check each title's page before downloading.

How do I install Sandbox?

There's no single installer — Sandbox is a catalog, not one program. You pick a game from the listing, review its version and file size, then follow that title's own download flow. On Android, confirm you have enough free storage first, since some entries exceed 40 GB.

What is the file size of Sandbox?

The listing shows 0 mb, which is a placeholder rather than a real download weight. Actual file sizes vary per game — from about 0.09 GB for Townscaper up to 80.20 GB for The Crew Motorfest.