Well... If you found an exploit I am sorry for that. More informations would be helpfull, maybe how you did that? Did you play the web or download export?
i played the web version and the spike exploit is that when you spam click you can place another one as the menu closes and second is by stalling the 1 enemy for enough time to build up a fortress
Thank you for that information. The exploit with keeping one enemy alive and just waiting for resources was found earlier. Still thank you for reporting the bug.