Here is the full list of all 77 Revenge of the Titans achievements.
Hurrah! Christmas is finally over!
Defeated 4 Xmas Ultrayetis
Defeated 3 Xmas Ultrayetis
Defeated 2 Xmas Ultrayetis
Defeated 1 Xmas Ultrayeti
Researched all defenses
Researched everything
New rank: field marshal
Researched the decoy tower
Researched the droid factory
Researched all explosive tech
Made $10,000 profit from one mission
Made $15,000 profit from one mission
New rank: general
Vanquished 10,000 Titans
Researched all weapons
Researched all science and technology
Used the shield powerup 5 times
Turned 100 3-D Titans into 2-D Titans
Researched all turret upgrades
Fried 500 Titans with the Capacitor
Got $50,000 in the bank
Fried 250 Titans with the Capacitor
Got $25,000 in the bank
Fried 100 Titans with the Capacitor
Fully upgraded a turret
Lost 90% of your buildings to the enemy
Destroyed the Ultratitan!
Completed the Titan missions
Completed all missions at maximum difficulty
New rank: lieutenant general
Used the freeze powerup 5 times
Completed the Saturn missions
Destroyed a Behemoth
Made $5,000 profit from one mission
Vanquished 5,000 Titans
Repaired your buildings 5 times
New rank: major general
Nuked 250 Titans from orbit
Completed the Mars missions
Destroyed a Gargantuan
Used bezerk powerup 5 times
Blew up 500 Titans using explosives
Lost 100 buildings to the enemy
Blew up 250 Titans using explosives
Vanquished 2,500 Titans
Nuked the site from orbit 5 times
Squished 50 Titans under new buildings
Giant Titan killed within a few metres of the base
Blew up 100 Titans using explosives
Nuked 50 Titans from orbit
Nuked 100 Titans from orbit
New rank: brigadier
Researched nuclear reactors
Base held together with tape and string at end of mission
Lost 50 buildings to the enemy
Crushed 25 Titans under new buildings
Completed the Moon missions
Destroyed a Leviathan
Lost 25 buildings to the enemy
New rank: colonel
Vanquished 1,000 Titans
Got $10,000 in the bank
New rank: lieutenant colonel
Got $5,000 in the bank
New rank: major
Completed whole world at maximum difficulty
New rank: captain
Completed the Earth missions
Vanquished 500 Titans
Defeated a Megatitan
New rank: lieutenant
Vanquished 250 Titans
Lost 10 buildings to the enemy
Vanquished 100 Titans
New rank: second lieutenant
New rank: warrant Officer