Search for Planet Defense
Search Nuclear fusion
Build Launcher
When all the cases are filled start turning ion into launcher (Keep 4 ion)
Then turn economic center to launch
It should work
Then start to up your defense by building 2 others bunkers on the middle range on each side of the first one, like this : bunker, empty, bunker...
Up one of the level 3 ions to level 4
Build 2 more bunkers in the middle of the middle range.
Up the other level 3 ion to level 4.
Up the 3 bunkers in the middle to level 2.
Up the 3rd ion to level 3.
Put two more bunkers.
At this point you should be around 1500 M.
Launch Adv Economy.
Up the third ion to lvl 4
Put two more bunkers
Up two bunkers (in the middle) to level 2
Put 1 lvl 2 economic center on the last range.
Upgrade the 3 bunkers in the middle to level 3
Search Robotics
Put 2 lvl 2 economic center on the last range.
Upgrade 2 bunkers to level 3
Create a lvl 4 ion
Then continue a lit bit doing this sequence :
Upgrade 2 bunkers
Put 2 lvl 2 economic center on the last range.
Create a lvl 4 ion
This should leads you to :
9 lvl 4 ion in first range
The middle range filled with lvl max bunkers
11 lvl 2 economic center
Search
First off, 3 ion cannons in the front & center, and a bunker one row back and center. Upgrade the middle ion cannon ASAP. Once it is upgraded, the enemies will begin firing at it. If at this moment you have lost one ion just retry.
Then upgrade the least-damaged ion cannon to the side next. Then upgrade the middle ion cannon again to level 3 and another one to level 3 just after that.
I've reached the 60th waves quite easily with : warrior, cleric (melee range) and conjuror, ranger.
Then I stop.
Is there a Saving function somewhere?
Does the survival mode has a end?