It's a good game- as long as the premium content doesn't impede any of the challenges or anything, and it's confined to what you can see from the start (no pop-up "BUY FOR 5 DOLLARS!" to get the secret weapon, etc.), I'm fine.
A tip for those with overstressed elevators: make sure all levels are still connected, but have gaps in elevator shafts so that there are multiple 'cars' to go up and down them, increasing overall load.
For years, we have sat in your city, scared to go out, always fleeing this Creeper- but now, WE STAND! NOW... WE FIGHT! FUS RO DAH!
*turns on Survival Mode*
...The final part is a FLUX CAPACITOR!?! You mean we're either sending these morons to harass us later on or making them able to sabotage us before we could defend? Some Agent clearly infiltrated our engineer corps...
Okay, so I spend 25,000 on a new shop, just to find I have to join a guild so that OTHER PEOPLE can build it for me? maybe I should've been told this BEFORE I spent a crapload of money?
Altrnate (custom) version of one level- http://www.gamezhero.com/online-games/strategy-games/tentaclewarsthepurplemenace-games.html?level_id=533ee8abe0ad6398a4568b08cc112114