ConnecTank achievements are not difficult, their names and descriptions are generally self-explanatory, but there are hidden "triggering" conditions for a few of them. Some conditions have been disclosed by the community, I discovered a few ones by myself, and some have been revealed by the devs themselves. To help anyone having a hard time completing this game, I finally decided to combine all the info in this guide: it lists all the achievements complete with their unlocking requirements, plus some tips and tricks to make things a little easier.

The achievement list is organized as follows:

• Campaign achievements can be unlocked by completing the campaigns of the three main character (Finneas Fat Cat, Lord Longneck, Emperor Penguin), that is by playing their "company priority" missions;
  
• Level achievements can be unlocked by completing levels that have special modifiers applied;
  
• Tank achievements can be unlocked by completely building a few specific tanks;
  
• Mission achievements can be unlocked by completing specific missions assigned by certain characters;
  
• Miscellaneous achievements can be unlocked by fulfilling other conditions (mainly unlocking tanks and items).

You'll probably get most part of the achievements just by playing the three campaigns of the game. Unfortunately, Tank and Miscellaneous achievements require some grinding, also the Mission achievements have very specific requirements to fulfill.

Complete the tutorial level.


Complete the "Now Hiring, Whether You Like It Or Not" mission from Finneas Fat Cat. To show up, this mission requires:

• at least 20 market share points for Finneas Fat Cat.

It builds the factory, the first building of the related campaign.


Complete the "There's Artists In Them Thar Communes" mission from Finneas Fat Cat. To show up, this mission requires:

• to have the factory built;
  
• at least 40 market share points for Finneas Fat Cat.

It builds the statue of Finneas Fat Cat, the second building of the related campaign.


Complete the "Run the Jewels" mission from Finneas Fat Cat. To show up, this mission requires:

• to have the factory built;
  
• to have the statue of Finneas Fat Cat built;
  
• at least 60 market share points for Finneas Fat Cat.

It builds the giant laser pointer, the third building of the related campaign.


After completing the "Run the Jewels" mission from Finneas Fat Cat, watch the credits till the end.


Complete the "Color Me (Not) Impressed" mission from Lord Longneck. To show up, this mission requires:

• at least 20 market share points for Lord Longneck.

It builds the museum, the first building of the related campaign.


Complete the "All That Glitters Is Not Gold. Sometime's It's Emeralds." mission from Lord Longneck. To show up, this mission requires:

• to have the museum built;
  
• at least 40 market share points for Lord Longneck.

It builds the statue of Lord Longneck, the second building of the related campaign.


Complete the "Just Stick To The Plan" mission from Lord Longneck. To show up, this mission requires:

• to have the museum built;
  
• to have the statue of Lord Longneck built;
  
• at least 60 market share points for Lord Longneck.

It builds the giant tower, the third building of the related campaign.


After completing the "Just Stick To The Plan" mission from Lord Longneck, watch the credits till the end.


Complete the "Morning Zoo For The Motherland" mission from Emperor Penguin. To show up, this mission requires:

• at least 20 market share points for Emperor Penguin.

It builds the radio tower, the first building of the related campaign.


Complete the "Penguins Do Not Live At The North Pole" mission from Emperor Penguin. To show up, this mission requires:

• to have the radio tower built;
  
• at least 40 market share points for Emperor Penguin.

It builds the statue of Emperor Penguin, the second building of the related campaign.


Complete the "Charge Up The Cold" mission from Emperor Penguin. To show up, this mission requires:

• to have the radio tower built;
  
• to have the statue of Emperor Penguin built;
  
• at least 60 market share points for Emperor Penguin.

It builds the giant fan, the third building of the related campaign.


After completing the "Charge Up The Cold" mission from Emperor Penguin, watch the credits till the end.

Beat an enemy tank whose level has the Retractable Recycletron modifier applied.


Beat an enemy tank whose level has the Fuel-Efficient Frame modifier applied.


Beat an enemy tank whose level has the Extra Equipment modifier applied.


Beat an enemy tank whose level has the Portable Portals modifier applied.


Beat an enemy tank whose level has the Titanium Flooring modifier applied.


Beat an enemy tank whose level has the Quantum Scanners modifier applied.

Collects all 5 parts of the Solidarity Forever tank. Its driver is Seamus Gompers, who stands up against Finneas Fat Cat, therefore chances of encountering this tank are higher in the final missions of Finneas Fat Cat campaign and missions that greatly increase the related market share.


Collects all 5 parts of the Desert Rat tank. Its drivers are Dana and Danny Donovan, who stand up against Lord Longneck, therefore chances of encountering this tank are higher in the final missions of Lord Longneck campaign and missions that greatly increase the related market share.


Collects all 5 parts of The Northern Hammer tank. Its driver is Aurora, who stands up against Emperor Penguin, therefore chances of encountering this tank are higher in the final missions of Emperor Penguin campaign and missions that greatly increase the related market share.


Collects all 5 parts of the Captain Connectank tank.


Collects all 5 parts of the Princess Kaboom tank.

Complete the "And You Can Take That to The Bank" mission from Finneas Fat Cat. To show up, this mission requires:

• to complete the Finneas Fat Cat campaign at least once;
  
• to have the statue built for Finneas Fat Cat;
  
• a market share between 20 and 40 points for Finneas Fat Cat.

Complete the "Serious Password Security" mission from Lord Longneck. To show up, this mission requires:

• to complete the Lord Longneck campaign at least once;
  
• to have the museum built for Lord Longneck;
  
• a market share between 0 and 20 points for Lord Longneck.

I have to point out that Lord Longneck's market share was between 70 and 100 when this mission showed up during my playthrough, therefore I don't exclude that the actual market share required by the mission may be different from the "officially" suggested one.


Complete the "Emperor's New Clothes" mission from Emperor Penguin. To show up, this mission requires:

• to complete the Emperor Penguin campaign at least once;
  
• to have the radio tower built for Emperor Penguin;
  
• a market share between 0 and 20 points for Emperor Penguin.

Complete the "Go Fetch" mission from Tobias T. Terrier. This mission has no specific requirements, just keep completing Tobias' missions and it will eventually show up in the list of available missions.


Complete the "Laser Lassoing" mission from Tobias T. Terrier. To show up, this mission requires:

• to have the giant laser pointer built for Finneas Fat Cat.

Completing this mission destroys the giant laser pointer, the third building of the Finneas Fat Cat campaign.


Complete the "I Heart Longneck" mission from Sally “Six Socks” Sullivan. This mission has no specific requirements, just keep completing Sally's missions and it will eventually show up in the list of available missions.


Complete the "Through the Looking Glass" mission from Sally “Six Socks” Sullivan. To show up, this mission requires:

• to have the giant tower built for Lord Longneck.

Completing this mission destroys the giant tower, the third building of the Lord Longneck campaign.


Complete the "Moby ♥♥♥♥" mission from the Prince of Whales. This mission has no specific requirements, just keep completing Prince's missions and it will eventually show up in the list of available missions.


Complete the "Wind Jammers" mission from the Prince of Whales. To show up, this mission requires:

• to have the giant fan built for Emperor Penguin.

Completing this mission destroys the giant fan, the third building of the Emperor Penguin campaign.

Complete any mission in single player mode.


Complete any mission in multiplayer mode.


Build 30% of the total tanks.


Build 80% of the total tanks.


Fund 30% of the total items (ammo and M.O.D.s combined).


Fund 80% of the total items (ammo and M.O.D.s combined).

Here's a list of tips and tricks:

• The Pirate Hat and Fiery Collector M.O.D.s. grant you an additional tank part after defeating enemy tanks. Even though I suggest funding them as soon as they appear in the GoTankMe hub so that they can drop during missions, be wise and think twice before equipping them because they also have negative effects to deal with. The Mic Dropper tank has the Pirate Hat equipped by default but its max HPs is low, so you can quickly lose if an enemy exploits your tank weaknesses: again, wisdom is the key.
  
  
• There's a little group of tanks that requires completing their dedicated mission first, before starting to show up randomly. These missions are usually assigned by a secondary character of the game, here are some:
  
  • the Recovering The Satellites mission from Finneas Fat Cat unlocks the Neil Strongarm tank;
    
  • the Ghost Hunters mission from Himmelbraun the Physicist unlocks the Panzergeist tank;
    
  • the El Desperado mission from Log Dog unlocks the El Desperado tank;
    
  • the Creepy Clowns Harsh The Vibe mission from Hootie and the Blowfish unlocks the Giggles tank.
  Even after completing their missions, the chances of finding such tanks are pretty small, so I strongly suggest prioritizing (that is, fighting) them whenever you find one. Anyway, you can always fund Bonnie Rae Quinn and BRQ-1 in the GoTankMe hub after each mission, to get a new tank part (retrieved parts will also be for tanks yet to encounter, by the way).
  
  
• Sometimes the desired mission doesn't appear in the list of the available gigs, despite its requirements being fulfilled. In such cases, just close the game and start it again to "shuffle" the list of gigs. It usually works (based on my experience), but if the mission selection doesn't change at all... complete one of the available missions (preferably without breaking the requirements) then try again.
  
  
• When you bump into character shops during missions, take a look at the M.O.D.s. on sale (if they have any): the Piggy Bank M.O.D. grants you 100 coins and it's basically free money (it costs less than that); the same goes for the Overtime Payment M.O.D. which grants you 250 coins, but take the 50-damage side effect into account.

Now, one last tip about game progression and how to handle it better. The three campaigns of the game are not three separate things, they always unfold together through both the missions and the market share system. Since each mission tends to support only one faction at the expense of the others, it's pretty much impossible to complete all the campaigns simultaneously, quite the opposite you'll end up with the same old missions in the list of available gigs, over and over again. I find it smarter to choose one faction and "stick" with it till the end of the related campaign, by avoiding missions that decrease its market share too much. While doing so, it's also a good thing to prioritize missions assigned by the supporting characters of the current faction (ex. Syd The Skulpter for Lord Longneck), and reserve missions assigned by the opposing characters (ex. Danny and Dana Donovan for Lord Longneck) for later. This way you can use the former to progress through each campaign and the latter to lower the market share when you're done with it, also making missions rotate more often.

Thank you for reading this far, I really appreciate it!
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This section (split into two parts) contains the list of all 76 tanks to unlock in the game.