How do you get the Stockpiler? It seems impossible to "complete eight waves without spending a cent". Do you use no towers or just use the ones given?
How to get the Stockpiler achievement in Hexdefense for Android
hexdefense
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Very good question, I am pretty sure i've figured it out and its a bit disappointing.
I think I know this for version 1.2.1. Also I think there is a bug in the scoring.
You get a fixed amount of points for killing creeps (differs per wave) and for lives left after wave 20 (2000 per life). Besides that you get points for calling a wave early, 250 per wave, going down if you wait longer. However if you call the wave before the previous wave is dead (an the timer for the next wave starts) you don't get any points, I think that is a bug.
One thing I haven't explicitly checked is if you get more points for fast forward, but I am pretty sure you don't.
This sadly enough also means that the absolute max score lies somewhere around 57.500-58.000 points when playing on hard, even when you easily beat all the waves there is no way to get a higher score.
I hope the developers add an infinite waves mode, fix the bugs with sending waves early and allowing 2 waves at the same time and/or add an extra difficulty level. Cause it would easily make me play all levels another 10 times ;)
The main key to hexdefense (in easy or hard mode) is upgrading towers - I don't usually do hard mode but I saw your question and tried Pinball in hard mode to try it out... I got past wave 20 with only 4 towers by upgrading: The strategy I used was to put lazers in a way to maximize damage where creeps go and to use missles (red) to take remaining hits.
- I first put a lazer just above the eastern + to catch creeps on their way up (it is helpful to first note their pattern without any towers).
- Then I put a missle as soon as I could N, N, NW of the exit to take care of 1 or 2 stragglers on wave 2.
- Then I upgraded both of these fully.
- Then I put a missle SE, SE, NE of western + to maximize the lazer's damage.
- After upgrading that, I put a second lazer S, SE, SE of the western + to double the lazer damage on the diagonal between the two lazers and upgraded (both these upgraded lazers were able to take out the fire boss on wave 15).
- Then I put a few more missles in, not impeding creeps current path.
This got me to wave 24 (which is very horrible since I know people have done FARRRR better - leaderboard shows wave 117, prolly on easy mode), but this is just one strategy to work with, though I still don't know how people get to wave 260 on the Intestines level, or even to wave 50.
Best Answer
I got it the first time on level 32: Slow Em Down, but I've gotten a on a few others now. I get it after I've covered every available cell with towers and completely upgraded them. At that point I have nothing left to spend my money on, but I'll still be able to plow through a several more waves.