Sentinel 2: Earth Defense
By Origin8
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Description
Sentinel 2: Earth Defense - a premium Sci Fi strategy game.
It's war, and this time it's too close to home. The Martian mission may be over, but the aliens haven't finished playing space invaders yet.
Extraterrestrial eyes have turned to a new target: they want Earth, and you're the one that has to say 'no'!
Welcome to the future of Tower Defense.
Sentinel 2: Earth Defense expands upon the acclaimed gameplay of Sentinel: Mars Defense. The action takes place across varied, lushly rendered Earth environments, and the alien assault force has grown more vicious than ever. Luckily, human turret technology has also advanced, and the ship weapons system provides a spectacular new way to eradicate invaders!
NEW IN SENTINEL 2
• Unleash the Sentinel's incredible ship weapons system - if you've got the power to do so...
• Deploy mobile attack drones to harass the enemy and augment static defenses.
• Construct boosters to buff your offense, and upgrade to top-tier towers for devastating special moves!
• Pit yourself against previously unseen members of the star spawned horde.
• Mission mode provides quick tactical challenges. Beat a scenario to earn achievements!
• Full online high scores, achievements, friends and chat using OpenFeint
• Exclusive new music written by Specimen A
• OS3.0 iPod Music Player (OS3.0 or higher required)
CLASSIC SENTINEL FEATURES
• Specialised structures and units provide unique tactical gameplay.
• Use the landscape and destructible defenses to maximize the effectiveness of your weapons.
• Resource harvesting and interest system adds a new dimension of risk and reward.
• Assault mode provides hours of play; endurance mode is an endless challenge.
• Visually stunning environments, towers and enemies with fluid zooming and scrolling.
REVIEWS
148Apps.com - INCREDIBLE
"A combination of fantastic graphics and multi-layered complex gameplay make Sentinel 2 the best tower defense game on the App Store."
Appversity.com - EDITOR'S CHOICE AWARD
"one of the highest quality games you’ll find on the App Store"
TouchArcade.com
"If you're into tower defense games, both Sentinel and Sentinel 2 are games you should already own."
Pocketgamer.co.uk - SILVER AWARD
"great value", "a fun, immensely playable game"
• If you experience any problem with Sentinel 2, email us at SUPPORT@ORIGIN8.COM
• Sentinel: Mars Defense features in Apple's App Store Turns 1 top games list!
What's New in Version 1.4.0
Thank you all for your fantastic reviews and your feedback. The long-awaited new content is finally here!
- New Sentinel weaponry (the ION bomb)
- New tough walker enemy armed with laser cannons
- 2 new tactical missions
- New OpenFeint achievements
- Higher resolution graphics on some enemies
- Some rebalance and bugfixes
Expansion Pack 1 is also available to purchase from within this new version of Sentinel 2. This contains:
- 2 new maps with new gameplay mechanics
- New flying enemy which has a shield to resist certain damage
- 3 New tactical missions based around the new maps
- New openfeint leaderboards, challenges and achievements
Please enjoy this new content and take time to update your reviews, as always 5 star reviews keep the updates coming!
** We have heard some users experiencing a delay in downloading. Please quit the app and retry if it pauses, it won't charge you again. We are looking into the problem and will issue an update asap **
Customer Reviews
Only 4 maps... huge bummer
The reviews here are way too high for a game that offers just 4 levels to play. I agree that the game itself is terrific but... 4 measly maps? Cmon now. The game is over in no time. Sure, you can go back and replay them all over again on a different difficulty if thats what you want. Or you can do what they call missions where they take half your equipment away and tell you to manage without it. But all these things are played on the same 4 maps over and over and over. Now if there was 20 maps, then the added stuff would be great, because by the time you finish the 20th, the first map will seem new again. But just 4? Its hard to find the ambition to replay something over that you just finished. I find this a 5 star game, with 1 star in diversity. Ill split the gap and give it 3 stars.
A bevy of enemies and new TD weapons
It’s always difficult to make a sequel because concepts and personal preferences run their course. But, Sentinel 2 is a solid complementary, and for those new to the genre, standalone title that continues the legacy beyond the original.
Sentinel is the name of the dropship with powerful weapons which require time to charge and recharge after use. In the meantime, the objective for the player is to defend various compounds from alien attacks. The storyline in Sentinel 2 focuses on the aftermath of the failed mission on Mars, and now, the aliens are launching an attack on Earth. Sentinel has been revamped with new weapons to fight the attack waves, and the updated OpenFeint online system not only tracks scoring but provides a way to discuss and share strategies with other players.
Two elements that were introduced in the original Sentinel are also back: the repair drone and the barriers and electrified gates. These were innovative ideas back then, and they remain innovative even now. I’ll get into the repair drones shortly, but you’ll want to get those as early as possible. As for structures, there a whole new set of barriers to protect, and I always found these barriers and gates a refreshing element in the original Sentinel.
Sentinel 2 retains much of the visual presence with the drag and zoom functionality. Watching animations such as alien beings continuously bashing barriers or teleporting from one place to another just adds flavor to the genre. Because the setting is now Earth, the game has a significantly different look along with a new soundtrack. In addition, the towers physically change when upgraded, which certainly is worth pointing out since not all TD games do that.
Sentinel 2 has two modes of play: Campaign and Mission. In Campaign mode, 4 maps are included with two sub-modes: Assault and Endurance with 4 levels of difficulty: easy, medium, hard and psycho. Assault follows the specific number of wave attacks format, while Endurance is a survival mode with unlimited attack waves. Only when a map is successfully defended in Assault will it unlock in Endurance. A typical map will generally provide 35-40 minutes of play on normal speed (a fast forward button is included), and provided you succeed, Endurance mode with unlimited attacks will provide plenty of replay value.
The new addition is Sentinel 2 is the Mission. It’s a new take on achievements much more elaborate and requiring quick thinking and even faster reflexes. Mission provides 10 different scenarios that lead into an achievements system. The catch of course is that you’re are extremely limited in resources, must meet scoring requirements or ensure that barriers are not damaged. This really adds a good layer of mental challenge to the game because in some cases, you won’t have any resources to start at all. For example, one of the missions involves surviving 1 wave with zero resources. Obviously, you’ll need to sell and buy quickly and know where to place and move defenses.
As in the first Sentinel, Earth faces a multitude of alien enemies which include mutants, arachnids, and winged parasites. New ones have been introduced that can teleport from one location to another as well as more elaborate enemies that require more firepower to destroy. A good tutorial is included that provides details and statistics for each of the units, and you’ll want to be familiar with all the nuances of the weaponry. The weapons from the original are all here—Laser, Bomb, Slow, Beam, Sniper and Ion. But Sentinel 2 boasts some new weapons and elements including a booster tower, an energy drone and a new set of dropship weapons. Each weapon has its own specific strengths (range, potency) and the booster tower is a new tool that when properly placed can enhance the strengths of other defenses. Visually, it creates a network linking those defenses, and it’s an interesting device to experiment with. When properly placed, they can incrementally increase the power and reach behind weapons so holding off on buying additional defenses may make more sense in the short term.
The new dropship weapons—Homing Missiles, Attack Drone, Time Warp, Orbital Laser—are a new set of defenses that when used properly can deal significant damage. Through auto or manual targeting, these weapons slowly charge up during the game so you’ll want to be careful how you use them. It adds yet another layer to your defenses, and visually, they look great in action on the screen. For example, with the Orbital Laser, imagine a powerful beam of light that shoots down from above cutting across the landscape vaporizing enemies in its path. I have to say that the Attack Drones are fun to watch as they zip around blowing enemies apart and is well executed in the Sentinel scheme. Speaking of drones, the repair drone in the original would repair damaged barriers as well as generating additional resources by mining. The new energy drone companion will use those resources to further charge up the new dropship orbital weapons.
The controls are drag and place and upgrading defenses is done by tapping on the specific unit. Icons representing the various defenses are located at the bottom of the screen. A weapons toggle is located in the bottom right corner which brings up options for the drones and the dropship weapons.
As with TD games, the gameplay is pretty frantic and requires in some cases, quick buying, selling, and buying again because of limited resources. Easy mode should be a breeze for anyone who has played TD games to an extent. Hard and Psycho are insanely difficult and will test your mettle. As you progress through the maps, they become more difficult with as enemies attack from multiple points and entrances. If you’re a fan of the original Sentinel, then Sentinel 2 is a must have because it introduces several new elements that make it that just as compelling.
Beautiful but thin
The game is beautifully done, and the play that is there is among the best of the tower defense games I have seen. However, there is too little variety and therefore little replay value. More maps would help, but so would more enemies and more variety in the waves of enemies.
- Category: Games
- Updated Mar 10, 2010
- Current Version: 1.4.0
- 1.4.0 (iPhone OS 3.0 Tested)
- 11.5 MB
- Languages: English
- Seller: Origin8 Technologies Limited
- © Origin8 Technologies Ltd.
Requirements: Compatible with iPhone and iPod touch. Requires iPhone OS 2.2 or later.
Top In App Purchases
- 1 Expansion Pack 1 $0.99
