Full list of all 77 LEGO Dimensions achievements worth 1,975 gamerscore. It takes around 20-25 hours to unlock all of the achievements in the base game.
The base game contains 38 achievements worth 1,000 Gamerscore, and there are 13 DLC packs containing 39 achievements worth 975 Gamerscore.
Completed all story levels
Completed ''The Final Dimension''
Completed ''The End is Tri''
Completed ''Prime Time''
Completed 25 'Locate Mode' puzzles
Completed ''Mystery Mansion Mash-Up''
Completed ''All Your Bricks Are Belong To Us''
Completed ''The Phantom Zone''
Completed 25 'Chroma Mode' puzzles
Entered 'Elemental Mode' on 25 unique occasions
Completed a level while only ever keeping one character active on the Toy Pad
Completed ''Aperture Science Enrichment Centre'' within 25 minutes
Collected 30 Minikits from levels
Gave the Batmobile a chrome paint job
Completed ''Riddle-earth''
Completed ''Aperture Science Enrichment Centre''
Completed ''Once Upon A Time Machine in the West''
Completed 15 hub world renovations
Gave the Batmobile a pink paint job
Collected 30 Gold Bricks
Completed ''Painting the Town Black''
Collected all of the Gateway Keystones
Upgraded the Batmobile to Model 3
Completed ''A Dalektable Adventure''
Shifted through 50 ''Shift Mode'' rifts
Completed 5 hub races
Travelled through 20 rifts throughout the game
Completed ''Elements of Surprise''
Completed a race in any of the hub worlds
Visited the homes of Batman, Gandalf and Wyldstyle
Completed any hub world renovation
Collected 5 Gold Bricks
Completed any hub world quest
Visited any Hub World for the First Time
Upgraded the Batmobile to Model 2
Completed ''Meltdown at Sector 7-G''
Completed ''Follow the LEGO Brick Road''
Rebuilt the LEGO Gateway
Completed ''The Mysterious Voyage of Homer''
Achieved the ''Rule Breaker'' stud goal in the ''The Mysterious Voyage of Homer'' level
Collected any Minikit within the 'The Mysterious Voyage of Homer' level
Completed ''Aperture Science''
Collected any Minikit within the 'Aperture Science' level
Achieved the ''Rule Breaker'' stud goal in the ''Aperture Science'' level
Completed ''Back to the Future!''
Achieved the ''Rule Breaker'' stud goal in the ''Back to the Future!'' level
Collected any Minikit within the 'Back to the Future!' level
Completed 'The Dalek Extermination of Earth'
Achieved the ''Rule Breaker'' stud goal in the 'The Dalek Extermination of Earth' level
Collected any Minikit within the 'The Dalek Extermination of Earth' level
Completed 'Ghostbusters!'
Achieved the 'Rule Breaker' stud goal in the 'Ghostbusters!' level
Collected any Minikit within the 'Ghostbusters!' level
Completed 'Retro Wreckage'
Achieved the 'Rule Breaker' stud goal in 'Retro Wreckage'
Obtained any Minikit within 'Retro Wreckage'
Completed 'A Book and a Bad Guy'
Achieved the ''Rule Breaker'' stud goal in the 'A Book and a Bad Guy' level
Collected any Minikit in the 'A Book and a Bad Guy' level
Completed 'Mission: Impossible'
Achieved the ''Rule Breaker'' stud goal in the 'Mission: Impossible' level
Collected any Minikit in the 'Mission: Impossible' level
Completed any quest in the Ghostbusters (2016) Adventure World
Completed all of the levels in the Ghostbusters (2016) Story Pack
Achieved the ''Rule Breaker'' stud goal in any Ghostbusters (2016) Story Pack level
Completed any quest in the Fantastic Beasts Adventure World
Completed all of the levels in the Fantastic Beasts Story Pack
Achieved the ''Rule Breaker'' stud goal in any Fantastic Beasts Story Pack level
Completed 'Sonic Dimensions'
Collected any Minikit in the 'Sonic Dimensions' level
Achieved the ''Rule Breaker'' stud goal in the 'Sonic Dimensions' level
Completed any quest in the The LEGO Batman Movie Adventure World.
Completed all the levels in the The LEGO Batman Movie Story Pack.
Achieved the ''Rule Breaker'' stud goal in any The LEGO Batman Movie Story Pack level
Completed 'The Goonies'
Achieved the ''Rule Breaker'' stud goal in the 'The Goonies' level
Collected any Minikit in 'The Goonies' level