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