Niggles: Wait wait. How many times have we ended up with two indies or two classics in the one week? (excluding gem promos)
For that you would need to go to...
ze spreadsheet! All thanks to JMich for creating and running the awe-inspiring Spreadsheet of Doom. Now then, Nov 19 and Nov 21 saw the releases of Goodbye Deponia, American McGee's Grimm, Dustforce, Shivah, and Wing Commander: Armada. Of the five releases only Wing Commander: Armada was a classic. Compare that to March 12 and 14 where the releases were Magic Carpet 2, Secret Agent, Omikron: The Nomad Soul, and the Catacombs Pack. Of the four* releases all four* were classic games. There will always be at least one classic a week, other than that it's a mad grab-bag.
*Can be read as four releases or eight depending on how you count the Catacombs pack. Technically it includes The Catacomb, Catacomb 3D: Descent, Catacomb Abyss 3D, Catacomb Armageddon, and Catacomb Apocalypse according to the game card.