Joust and Robotron came from signing up for the xbox newsletter at one time I believe. Not 100% sure. I got those free as well.
Undertow was given free because of the XBL downtime around X-mas last year.
I believe Carcassone was given free during a Xbox conference or something. It was only free for a day or two. I had already purchased it before it went free. It's a fun game.
Aegis wing has always been free (it was a MGS intern game) and is actually worth downloading
Yaris was an adver-game and is not worth it.
I got frogger free with a promotion too but forgot for what.
I've had my Xbox around a year and received all these free games so I guess in a way they have been somewhat frequent.
Sometimes XBL cards will give a free XBLA game too. I've seen ones at my local gamestop that bundle Joust, Pool, or Poker.
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Completed X360:  |
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| High Def Movie Collection |
