The latest Humble Mobile Bundle offers 12 Android strategy games for just $5
The conditions of the deal/s may have changed since the initial publishing of this post.
Unlike many previous bundles, the Best of Strategy foregoes the classic BTA (beat the average) middle tier, and replaces it with a fixed-price one. Otherwise, the bundle is pretty conventional, but still full of pretty good games.
$1 or more will get you Epic War TD 2, MechCom 1 and 2, Age of Civilizations, and a $5 in-app purchase for Battle for the Galaxy. The middle tier of $3 gives you access to Anomaly Defenders and Anomaly 2, Kingdom Rush Frontiers and Origins, and Hero Generations. If you pay $5 or more you'll also get Guild of Dungeoneering and Worms 4
Overall, this is a pretty solid bundle, though one could argue Humble is stretching the meaning of "strategy" by including tower defense games. It's also a great value, as the games are otherwise worth $47. As usual, buyers can choose where the proceeds go, including to developers, charity, or Humble itself.
source: Humble Bundle
Things that are NOT allowed: