First we had Fieldrunners, then Tap Defense and now 7 Cities TD. The first 6 cities in this game are very easy, but i have spent hours on my train commute trying to beat the last city “Onyx Monolith” and finally beat it tonight with only 7 lives lost. Here are some pointers you can follow to beat this level yourself, and save yourself some frustration (note: i have only tested this strategy on easy):
1) Like my strategy for Tap Defense, it turns out an Arrow Tower strategy in the beginning works wonders. Build them as soon as you have the gold because the more towers standing the more gems you can get with each kill. DO NOT BUILD ANY OTHER TOWER TYPE YET.
2) The mistake i was making was trying to distribute my gem +dmg upgrades across too many towers. I found it best to put 100% of my gem upgrades into the arrow tower in the picture below. Eventually you are just one shotting everything that attempts to pass by.
3) Once you have covered the map in arrow towers and have the gold, replace 3 of them with Obelisk towers, each using different auras (Damage, Range & Speed) and overlapping your “uber” arrow tower pictured above.
4) Continue to spend gems on this arrow tower. You may find a couple heavy armor turtles get by near the end.
5) Once you are comfortable with how things are going feel free to add a few tornado towers before the area where the rivers converge to maximize impact of your uber tower.
6) Use the “Critical Hit” upgrade on your arrow towers as they level up.
Here is what my map looked like when i finished the game:
You can also check out my strategy for beating Tower Defense for iPhone here.
NICE!!! i was trying to figure out how to beat this game…
i’m playing it on hard though! thanks for the guide
Great post! Strategy based on yours (arrow, tons of obelisks, one uber tower, tornadoes with ice devil) works wonders. I was able to get to 130s waves on hard mode on most maps. however, you get overwhelmed by immune enemies eventually, and lightning towers don’t seem to make a difference. We really need discussion forums for this game… I’ve asked developer about this.
thx mate, works perfectly !
The arrow tower of doom strategy works amazingly well. For endurance levels, I’ve made a modification. Once you hit level 50 or so: In some part of the map where enemies rarely reach, clear out all but one tower, then surround that tower with obelisks. Spend a bunch of gems upgrading damage on that one tower and all the obelisks will increase as well. You’ll soon have an orbital defense satellite one shotting everything… just be sure to sell non-upgraded towers within range of the tower you’re upgrading for obelisk power. In my current game, I have 9 6210 strength obelisks on wave 97 in my current game.
but i found normal mode the 6th city is very difficult. any suggestion?
how do I beat diamond sky level normal? the arrow tower strategy isn’t working there
yea, anyone have any strategies for beating diamond sky? i’ve been stuck on that one =(
Totally, Diamond Sky, especially after the update, is too difficult on hard to use the single arrow tower idea. Anyone?
i haven’t been able to get past diamond sky either, i tried this strategy on easy but after wave 10 lost all my 30 lives in 3 waves. any suggestions?
…this strategy doesn’t work at all. i tried it on the same level, onyx monolith, on easy. i got up to wave 22 and lost two waves later
Works perfectly on easy level! I’ve lost 12 lives but surrended
I can’t figure out how to choose different auras with in the same map even when I have all of the skills unlocked. Can anyone help me?
Tap the obelisk of choice. Tap the obelisk icon that comes up, then choose your aura.
It’s kinda the same step you use to upgrade towers when they highlight.
In hard difficulty, you have to vary your “Arrow-Tower-of-Doom” a little bit, but ultimately, thats what you are looking for.
I usually start off by having at least 2 cannon towers.. yes cannon towers.. and spend your inital 2 gems on the 2 cannons. but don’t build more than 4, then add 2/3 more arrows, to make a total of 6-8 towers. place them at a good choke point .
with 6-8 towers, your gem income will be at a relatively decent pace and not leaking anything. minus the first boss or a few fast/heavy armor.
then once you hit wave 8/9+ you shud be spending all your gem on your tower of doom, and all your cash to make obelisks, maybe a wind tower or two, but i dont find them necessary.
I’ve went through all the cities on hard using this method without leaking one single unit
did you play in easy level?
No, it was on hard difficulty. Want me to send you screenshots? -_-
can you give some hints from the begin? I play like what U said but only one time I pass this map! in wave 1 2 3 what town that U build?
Anyone with some hints on how to beat Diamond Sky?
I tried arrows, a mix of arrows and cannons, cannons plus lightning, but never got so far as to build obelisks.
If I build arrow towers, the bosses & heavy ships do me in, otherwise it’s the regenerating and immune ones.
If you r playing servival mode, it’s impossible to get pass level 70 with arrows and cannons.. If any one has tips on getting pass level 170 on map 2… I would love to hear about it…
Diamond level is very easy you just need to have slot of lighting towers
concentrate towers and tornadoes on areas where all paths converge… arrow, canon, lightning, whatever. Do not always try to kill ships right where they enter the screen… it spreads out your defenses and you run out of money too fast. Pay attention to the effective range of your selected towers… and use the locations that cover the MOST water on the map.
I’m on stage 7 level 115. Does this game have an end? If so what level is it at?
can anyone help for the diamond sky level?send me screen shot plz
Hallo everybody. I followed a different strategy for this game and i succeded with ease to get through all maps in hard mode.
1.POSITIONING: I believe this is the most interesting part of the game and one of the most important. My first move here is to find the right place to set my towers in order that my enemies will pass throught there a.more than once b.and that they pass for the second time when i will have already finished with the last enemy of the first passing (i really hope that i explained clear here). There are some maps that this rule will be hard to apply (as splited maps).
2.EARLY BUILDING STRATEGY: So i found the right spot but what next? In the beggining i consider that i dont have a lot of money or gems but it is very important to get some. So i need towers for killing enemies without letting pass anyone alive in order to continue my building strategy. The basic building strategy is that i want to build 1 arrow tower, 1 lightning and 1 cannon. Lightning tower is very powerful but with short range and a bit expensive for the beggining. So i will start with arrow tower but i will keep the best spot for the lightning one. Arrow can. will be build right next to the place i wanna place the lightning afterwards. If i have more money my next move will be the lightning or cannon (very important that you kill all enemies since the beggining so choose wisely). As soon as i build my towers i will use my gems to upgrade them.
3.NEXT STEP. In a short time i will have 3 towers (1 of each type) one next to the other. Gems will be destributed evenly to them. Now i ll have to think about slowing down the enemy. This step is a bit tricky as well. I found very useful that the range of the towers that slow down the enemy should be at the exact position where the range of lightning tower is. You can do this usually by placing this kind of tower after the 3 attacking towers.I dont have any use of an enemy that slows down or stops an enemy(with later upgrades) out side of my range because once he starts to move again he will not stop for some seconds even if you have other “slow-down” towers. Feel free to place some more slow-down towers using the same strategy.
4.LATE BUILDING STRATEGY. Now i have my 3 attacking towers in a great positioning, and they attack for a lot of time since enemies are passing near more than once and they slow down or stop right where i need them to stop. My next step is to upgrade as much as i can my 3 attacking towers using gems. I will continue to distribute the gems to the towers but now, for every 100 gold that i have i will buy one more gem (speeding up this way the upgrade process).
So, that’s all! Have fun everybody! I hope this will work for you.
Forgot to mention the importance of Obelisk. This tower increases the characteristics of all your towers within range so in the medium-late game it could be a good idea to build one near for a little bit of boost of your other towers. If i remember well every upgrade gives a boost of 2%dmg but speeds up attack rate, maximizes range and gold received as well. Do the math and you will see that spending some gems on an obelisk is not a bad idea at all. Just do not do it since te beggining because that extra boost does not worth the cost when you attacking towers are low level.
REPLY TO RHIE: I really enjoyed this map. The key is of course the positioning of the towers. Build your towers on the right of the map, at the lowest island. This way you can deal with both incoming enemies (from up and down) but most important, you will have to deal with them almost separately because enemies from down are arriving a bit earlier than the others.
Building one arrow and one cannon tower which have crazy hit points is the way to go. I usually spend all my power up gems on those two towers for the first 50-100 waves. I get them well into the thousands. Then you surround them with obelisks. You need 4 obelisks since each one gives you different powers: damage, speed, etc. Then add a lightning tower or two and a slow down tower or two. The rest of the map I start filling with a good balance of arrow and cannon towers and obelisks in between. I can now routinely get to wave 130-170 and at around 1Mil. points. I am working on how to tweak this to get to wave 200 and beyond.