Apple features 'Amazing Puzzle Games' on sale on 6th anniversary of the App Store

Today is the sixth anniversary of the App Store. And apparently in celebration of this milestone, Apple has featured several "Amazing Puzzle Games" available to download at limited-time prices on its hugely popular app distribution platform. Included in Apple's new "Amazing Puzzle Games" featured section are the impossible puzzle game Monument Valley and the numerical sliding puzzle game Threes!. Both Apple Design Award winners, they are joined by another puzzle game to which Apple has bestowed its award of excellence in design in the form of Blek. Here are the puzzle games highlighted by Apple in the featured section, which you can download at discounted prices for a limited time:

Monument Valley: from $3.99 to $1.99

Threes!: from $1.99 to $0.99

Blek: from $2.99 to $0.99

har•mo•ny 2: from $3.99 to $1.99

Eliss Infinity: from $2.99 to $0.99

Kiwanuka: from $1.99 to $0.99

Tengami: from $4.99 to $1.99

Quell Memento: from $2.99 to $0.99

Cut the Rope: Experiments: from $1.99 to $0.99

Cut the Rope: Experiments HD: from $3.99 to $1.99

Lost Toys: from $3.99 to $1.99

Blast-A-Way: from $4.99 to $0.99

Taijitu: from $1.99 to $0.99

All of the aforementioned games are universal downloads, except Cut the Rope: Experiments, which is optimized for iPhone and iPod touch only, and Cut the Rope: Experiments HD, which is compatible with iPad only. So, celebrate App Store's birthday by getting these iOS puzzle gaming gems while they're on sale.