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.