One of the finest puzzle platformers on the App Store, Mobigame’s Edge ($2.99), is currently free for a limited time. Edge was a standout release back in the early days of the App Store in late 2008, and then spent the better portion of the next two years battling a trademark dispute over its name.

Though the trademark dispute hogged many headlines during Edge’s lifespan, it was never lost on anybody that Edge itself was also a stellar game. If you somehow don’t already own Edge then you simply have to download it while it’s free to give it a try.

If you manage to complete all of the levels in the original Edge, a pseudo-sequel called Edge Extended ($2.99) was released last year which added and improved upon many aspects of the original.