An amazing two weeks ago, we brought you the news of this week’s Xbox Live releases and their prices, and now our prediction has come true. Harbor Master and Centipede are finally available on the Marketplace.

Harbor Master is a line-drawing game from Imangi Studios in which players direct incoming ships to port. Once the ships unload their cargo, they must also be sent safely on their way. It features seven levels with cool hazards like pirates and sea monsters. For more information, check out our exclusive preview.

Centipede is a faithful emulation of the hit 1980 arcade game from Atari (the Windows Phone port comes from Krome Studios). Players control a garden gnome who fends off invading centipedes and other vile bugs. Centipede is also the first Game Room title for Microsoft’s mobile platform. These arcade ports include bonus content like 3D recreations of the original arcade cabinets as well as historical data. WP7 Game Room games share Leaderboard data with the Xbox 360 and Games for Windows Live (PC) versions.

Both games costs $2.99 and have free trials. Grab Harbor Master here and Centipede here (Zune links) on the Marketplace.