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