Save the world from yet another zombie invasion in this match-3 defense game mash up. Match any three or more brains of the same type to wipe out the scourge before they take out your crack team of scientists. Gain special items to keep the horde at bay and upgrade to make sure no zombies get through your defenses.

Egypt got you down? Zombies trashing your tulips in the Wild West? We've got some help for you in our strategy guide for Plants vs Zombies 2, Popcap's popular free-to-play tower defense game for iOS and Android!

When Lunalie's mentor goes missing, she sets off to rescue them, along with cards she can use to summon in powerful units like knights, rogues, mages and more to help protect her in this gorgeous and challenging blend of real-time strategy and tower defense from Kurechii for Android and iOS!

Ironhide Games is back for more with the third installment in their wildly popular realtime strategy/tower defense game series available for iOS and Android. As gorgeous and charming as you'd expect, Origins doesn't do much to shake up the established formula, but with new enemies, locations, heroes, and more, it's everything fans enjoy with a high coat of polish.

Save the monster from waves of baddies in this innovative tower defense game. Place towers, then rotate the board to control the layout of the paths. Choose and upgrade your towers wisely to take out even the toughest of enemies.

The hit browser tower defense comes to iOS in this fabulous port. Defend your gems from greedy heroes by placing and upgrading towers full of evil minions and upgrade your spells and abilities. Subtly enhanced and tweaked for iPhone and iPad play, this is a port to be proud of.

It's good to be bad in this gorgeous and funny little tower defense game for iOS or Android where you must place traps to fend off the heroes trying to rescue the Princess... after all, you're trying to harvest her screams! Pay for it outright, or go "free-to-slay", but the most surprising thing might be how UNobnoxious Castle Doombad's free version actually is.

The first Multiplayer Online Battle Arena game for tablets has arrived. Created for iOS, this gorgeous casual fantasy multiplayer action game allows you to duke it out against other players on challenging maps with a variety of unique critter characters. Best of all? It's completely free... for now.

Tower defense games on mobile devices are about as common as ice in an igloo. That's why SMG Studio decided to go all-out with OTTTD. And by "all-out" we mean they crammed in everything they could think of to create a defense game that really is over the top. You'll like it, though, because all of those elements work together to add excitement and depth to a genre that desperately needs a rousing punch in the gut.

The adorable and addictive strategic tower defense hit is now available in delicious iOS flavour! You've kidnapped the kids of Fairyland, and now you must defend them until you can get them to your boss. With all new upgrades, abilities, levels, and an improved balance and UI, this is one mobile game that shines.

Kingdom Rush has returned! Ironhide Game Studio has released an official sequel to the tower defense game that stole our free time (and social lives) back in 2011. Kingdom Rush Frontiers is built on the same basic defense skeleton that made the first game so spectacular, only now there's more of it! It's Kingdom Rush, and you know it's going to be amazing, so get to playing!

Plants vs. Zombies 2: It's About Time has finally arrived. After a brief limited launch in Australia and New Zealand, PopCap and EA have unleashed the game in North America, closing the four year gap opened by the original Plants vs. Zombies. The sequel has some enormous expectations to live up to. Its predecessor won dozens of awards and has been praised as one of the most original and creative games in recent years. How do you follow something like that? By adding more plants, more zombies, and more levels. Oh, and by introducing tons of in-app purchases!

rymdkapsel is a mesmerizing defense game from Martin Jonasson (grapefrukt) that is as elegant as it is intriguing. It combines elements of spatial awareness, strategic planning, Civilization-like expansion, and a touch of zen-like exploration as you work your way further into outer space, discovering ability upgrades while defending yourself from attack. It's a beautifully balanced game that has the ability to hold your attention for hours on end.

Peace! Houh! What is it good for? Well, something apparently, as the various factions of Berzerk Studio's new defense shooter, The Peacekeeper, want it, and are willing to slaughter everything in their path to get it. A visceral burst of just-mindless-enough entertainment, The Peacekeeper is a bloody and hilarious good time, if a little repetitive in the endgame

CastleMine from Mugshot Games combines tower defense with a little bit of old fashioned digging. Instead of mapping out mazes for creeps to crawl through or building balloon things on green green grass, you get to dig underground one block at a time. Uncover extra gold deposits, additional resources, or even nests of enemies as you attempt to defend your castle from the threat from below.

This barbecue is being crashed by some seriously unruly lizards of the prehistoric sort! Most gophers would turn tail, but you're not giving up your delicious steaks without a fight! Plan strategically and make use of a variety of clever tower types to defend your 'cue against incoming dinos of all sorts, ranging from hordes of sprightly compys to enormous bosses in this indie defense game.

Something has gone terribly, horribly awry at Don Eduardo's zoo. Flesh-seeking undead animals are on the loose and you, plucky boy or girl, are the last line of defense in Zoombies: Animales de la Muerte!, a mobile line-drawing defense game from High Voltage Software. Could this be the worst field trip ever?

Block Fortress is Minecraft meets tower defense meets first person shooter, all squeezed down into a mobile game. Build a base in the middle of a blocky wilderness, place turrets and towers and power supplies to fortify your position, then send in the waves of enemies. Once combat begins, you shift from building mode to combat mode, taking a gun into battle and watching over your fort by blasting enemies by hand. It's incredibly exciting and also deeply rooted in upgrades and tactics, making it the sort of game you can play for months without truly mastering.

The original zombie-defending gardening sensation may be a few years old, but Plants vs. Zombies lives strong as it makes its way to more and more devices. The killer PopCap app hasn't changed much from its original incarnation, it's just been optimized for touch-based controls and smaller screens. It's just as wacky and fun as ever, though, so if you've never given it a try, now's your chance! It's Apple's Free App of the Week!

Calling all heroes! It's up to you to defend the castles of the kingdom in Wild Heroes. In this tower defense game you must place your heroes wisely to keep the enemy at bay. Upgrade them to wild status to really do some damage. Show the monsters what a hero is really capable of!

What are you doing? Protect those plant seeds! When zombies get it in their heads they'd rather eat seeds than brains, the plant kingdom rallies together to form the Vegendary Heroes, a group of fearsome warriors dedicated to fighting off the invading undead. I Am Vegend: Zombiegeddon is the tale of this epic struggle, taking a tongue-in-cheek setting and sense of humor from games like Plants vs. Zombies and setting it in a two dimensional defense world.

Asteroids have long been the nemesis of creatures living on Earth. Just ask the dinosaurs. Or the makers of that gem of an arcade game, Asteroids. Or the NASA researchers who were trying to figure out if we'd get smacked with a big chunk of space rock in a few decades (spoiler: we won't). Crumble Zone from Rebel Twins understands that ancient fear and it capitalizes on it by letting you save the world over and over again by tossing little missiles towards the sky. With satisfying sound effects, a soundtrack that actually rocks, and plenty of things to unlock, it's quite possibly the most exciting asteroid defense "simulation" around!

Kitty minions, go forth and fight! In Battle Cats from PONOS, you control legions of tall cats, chubby cats, flying cats, cows (which aren't cats), and plenty of other cute warriors whose sole purpose is to defend their base from legions of tiny stickmen, hippos, snakes and other bad guys. It's a familiar combat-oriented defense set-up we've seen before, but there's so much lovable style poured into this game, you can't help but to play until the wee hours of the morning, pitting cartoon cat against cartoon cat.

The pixel is mightier than the sword, if only because a sword can only be used for stabbin' and the pixels in Social Titans' addictive iOS match-3 defense game can be used to summon vampires. Create matches on a battlefield to summon and merge new warriors and classes in order to protect your VIP, who is SUCH a VIP that they can afford to wander around said battlefield without actually lifting a finger to do anything useful. Sigh.

Sarah Northway's massively popular zombie survival simulation strategy game gets an update in time for its anniversary on its mobile platforms! With the threat of winter hanging over your head and even more secrets and endings to discover, there's more reason than ever to pick up one of the most addictive turn-based sims around... for the first time, or again and again.

The tower defense genre has been around for years, punctuated every so often by the release of a game that sets a new standard for how things should be. One of the first for the browser world was Desktop Tower Defense, and for the mobile market, an early heavy-hitter was the original Fieldrunners. Developer Subatomic Studios took a few years to do it, but the team has finally rolled out a worthy sequel with Fieldrunners 2. Expect more maps, more variety, more units, more enemies, and more rewards with this stunning release that will rewrite the way you think of the tower defense genre on iPhone.

Hey there strategy and tower defense fans! Just a little note to announce a bit of good news for iPhone and iPod Touch owners. Kingdom Rush, the so-awesome-it's-mega-awesome tower defense game from Ironhide Games, has finally made its way to small-screened iOS devices, following Kingdom Rush HD for iPad and the browser version of Kingdom Rush last year. The game stands out as one of the best defense/strategy game on the planet, capturing two awards in our Best of 2011 feature, including Best Browser Defense or Strategy game along with Game of the Year! If you haven't tried it in one of its incarnations, you owe it to yourself to correct that mistake immediately!

Looking at the title of Alexandria Bloodshow, your mind might fly all over the place wondering what genre the game represents. Sounds like a great name for a first person shooter set in ancient Egypt, right? Well, that may be, but in this case, Alexandria Bloodshow is actually a tactical card combat game that succeeds the even more unusually named SAMURAI BLOODSHOW: les vagues blanches, les nuages rouges. Yeah, that's right! Once you put the names aside, though, you'll find a couple of excellent slow-paced strategy games that will remind you of Plants vs. Zombies in some surprising ways.

Defense games are as common as smudged screens on the iOS mobile platform, but developer Simutronics has done something creatively different with Tiny Heroes, a game that has as much personality as it has evil minions at your disposal. Putting you in the role of castle owner, you must place traps and send out baddies to thwart the deluge of heroes who are after your gold. You'd think a few sawblades and a Gork or two would be enough, wouldn't you?

It's dangerous in the primordial soup, a place where infected organisms roam hungrily looking to consume or destroy anything that crosses their path. At least, that's the scenario behind the fantastic Amoebattle by Grab Games, a real-time strategy gem created for iOS devices. Inside, at the microscopic level, it's a constant state of warfare, and war is heck.

In FazeCat's everything-but-the-kitchen sink defense game, Paladog, Critterland has been invaded by zombies, witches, skeletons, and just about every evil little thing you can imagine, including television sets! It's up to you to fight them off, but are you dog enough to take them on over a whopping 120 levels, including special mini-games. Paladog is a big, cuddly, newspaper-fetching machine, that brings back the Sunday paper, but slobbers all over the funnies... and you love it anyway.

Orbital Defender is a great looking planetary defense game from Addictive Zone that has been acutely tuned for ease of use on mobile devices. As a lone satellite orbiting a single planet, it's your job to keep the rock safe from asteroids, comets, UFOs, and more nefarious dangers as you orbit over and over again. You can't move, only shoot, and since firing at your planet is a very bad idea, you have to play a little game of strategy as you blast foes each time you swing by.

Well, would you look at that, another kingdom is in peril and you must defeat the king's power hungry son before it is too late. Nano Kingdoms puts you in charge of His Majesty's forces as you carve a path towards his evil son. Easy-to-figure out click controls make this realtime strategy defense game a nice choice for first time RTS players. The sounds are well-made, the art is wonderfully cartoonish, and the difficulty will leave you satisfied with your micro-managing skills.

Hexage, creator of Evac and Everlands, pits your human military prowess against endless alien swarm in this mobile tower defense game, Radiant Defense. Defense of your spiral reactor (which looks oddly like a stove burner) is the number one priority since it keeps out those pesky invaders from, you know, destroying all humans. Radiant Defense definitely keeps elements that you would always expect from the tower defense genre, but you remove the predetermined path and get the ability to create the path they will follow to their doom (hopefully). Lasers will fly, aliens will die, and the entire time your fingers will be nimbly working to hold off a rather comically bad invasion story unfold.

Surviving in a town overrun with zombies is tough. We get that. Scavenging for food, desperately hailing survivors, and attempting to expand your territory while fighting off infected hordes can tax just about anyone's resolve. And let's not even get into drafting a constitution with the undead knocking on your door! In the iOS version of Rebuild, the captivating zombie survival strategy simulation browser game from Sarah Northway, you get to do all of those things, plus repair a broken helicopter, raid a bar, and help scientists work on secret research projects!

New to the iPad world is the tower defense game we all love to love, Kingdom Rush HD from Ironhide Games, a port of Kingdom Rush for browsers released not too long ago. The team had a bit of a problem when an unauthorized clone appeared on the iTunes App Store weeks before release. The knockoff was spotted and eventually removed (whew), leaving space for this excellent port of an already excellent game to wow and surprise gamers in the iOS device realm!

Think you finally kicked your Plants vs. Zombies habit? You are so wrong. Just released on the iTunes App Store: PopCap's crazy-awesome casual defense game Plants vs. Zombies. It's got all the cherry bombing, squash pounding, sunflower sprouting, zombie dispatching wildness of the original PC/Mac download, now in the palms of your hands.