Here is the full list of all 74 Crash Bandicoot N. Sane Trilogy achievements. It takes around 40-50 hours to unlock all of the achievements on Windows.
Shoot a background UFO in Future Tense.
Just "forget" it. Repeatedly.
Earn the Gems in the bonus levels
Discovered the Secret Exit in Dino Might!
Earn 21 Gems
Defeat 5 enemies with Coco's Savage Hurricane Spin
Avoid whatever he's flinging at you.
Have your bazooka ready.
Shoot 5 of them in a single level.
Die.
Earn 5 Relics
Defeat N. Gin
Unlocked the Secret Exit in Hangin' Out
Die as Crash.
Defeat Tiny Tiger
Discover a Death Route
Discover the Secret Exit in Bear Down
Defeat the Komodo Brothers
Fly, then die.
Defeat Ripper Roo
Discover a "?" Bonus Path
Discover a Gem Path after earning a Color Gem
Defeat N. Cortex
Defeat N. Tropy
Discovered the Secret Exit in Road Crash
Defeat Dingodile
Defeat Pinstripe Potoroo
Defeat Koala Kong
Spin away an Extra Life
Defeat 5 enemies with Coco's Spin
Miss a lot of boxes.
Defeat Papu-Papu
Enter a Bonus Round after collecting 3 Character Tokens
In a single level, spin an enemy into another enemy twice
Earn the Key in Sunset Vista
Earn the Key in Jaws of Darkness
Earn 10 Relics (gold or better)
Defeat N. Brio
Earn 13 Gems
Earn 26 Gems
Earn 26 Relics (gold or better)
Earn 99 Lives
Don't feel guilty about jumping on him.
Discover the Secret Exit in Air Crash
Discover the Secret Exit in Diggin' It
Unlocked the Secret Exit in Unbearable
Earn 42 Gems
Earn 27 Relics (gold or better)
Defeat 5 enemies with Coco's Double Leg Drop
Shoot the Imposter
Earn 30 Relics (gold or better)
Seek and destroy
Do hard time
Seek and destroy. Again.