Dust: An Elysian Tail, Mark of the Ninja and more XBLA titles marked down

Dust: An Elysian Tail, Mark of the Ninja, Trials HD and a handful of other Xbox Live Arcade titles have been marked down today, though you'll need to be an Xbox Live Gold subscriber to access most of the deals.

The following titles are all available at half-price, and do not require you to be a Gold member to purchase them at a discount:

• Trials HD — 400 Microsoft Points ($5)
• Mark of the Ninja — 600 Microsoft Points ($7.50)
• Dust: An Elysian Tail — 600 Microsoft Points ($7.50)
• Deadlight — 600 Microsoft Points ($7.50)
• A World of Keflings — 400 Microsoft Points ($5)

These titles are all half-off as well, but require you to be a Gold member to see the lower prices:

• Quarrel — 200 Microsoft Points ($2.50)
• Mercury — 200 Microsoft Points ($2.50)
• Swarm — 200 Microsoft Points ($2.50)
• Pool Nation — 400 Microsoft Points ($5)
• Axel & Pixel — 400 Microsoft Points ($5)
• Retro City Rampage — 600 Microsoft Points ($7.50)
• Puzzle Arcade — 400 Microsoft Points ($5)