Presidents Day app sales: Grand Theft Auto 3, Silversword, Dead Space

We just had a round of App Store sales, but Monday's bringing another holiday with Presidents Day. Developers are putting even more apps on sale yet again. Here's a look at what's cheap (or even free) this holiday weekend:

• Match 3 Battle Harvest has gone free.

• All of Origin8's Sentinel tower defense titles are on sale, good stuff if you haven't played them yet.

• EA's iPhone version of Dead Space is down to just a buck.

• So is Kairosoft's Grand Prix Story racing team simulator.

• Grand Theft Auto 3 is just a dollar -- do not pass this one up at that price.

• Touch Arcade has a good number of free shooters listed, if that's your thing.

• Gameloft has quite a few titles on sale or free, including Uno, Eternal Legacy, The Settlers, and more.

• Tiny Token Empires is free, as is Little Milano.

• All of Mumbojumbo's titles are on sale for just a buck.

• The acclaimed RPG Silversword is down to $1.99.

• Monsters & Bones is free.

So there you go, something to play this weekend while you're ... remembering our former presidents? Enjoy!