Here is the full list of all 40 Crysis Remastered achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Tag 30 enemies using the binoculars
Kill 20 enemies with grab
Kill an enemy Nanosuit soldier with a Strength punch
Kill 10 enemies by throwing an object at them
Complete 'Core', 'Paradise Lost', 'Exodus' and 'Reckoning' on Delta difficulty
Secure victory in the Battle of Lingshan
Defeat the flight deck invader
Complete the game on any difficulty
Complete the game on Hard or Delta difficulty
Kill 400 enemies
Help the marines evacuate
Escort Prophet to safety
Escape the mysterious structure under the mountain
Complete 'Assault', 'Onslaught' and 'Awakening' on Delta difficulty
Defeat General Kyong
Enter the mines
Speed sprint 3km
Complete all Secondary Objectives
Customize a weapon to use all 5 modification points
Proceed to the mining complex
Reach the end of 'Onslaught' in the tank you started with
Destroy 5 helicopters
Secure the train station
Complete 6 Secondary Objectives
Destroy 5 enemy tanks
Use all weapon attachments
Destroy the cruiser
Kill 200 enemies
Destroy all AA guns around the harbor
Pick up an animal
Perform 5 consecutive kills without being spotted by an enemy
Complete 'Contact', 'Recovery' and 'Relic' on Delta difficulty
Board the VTOL for extraction
Infiltrate the excavation site
Kill an enemy 200m away
Regroup with Prophet upriver
Rescue the hostage
Perform a kill with every firearm
Complete 3 Secondary Objectives
Discover the fate of the Lusca's Call