If you are still struggling after trying all seven solutions, consider using a different repack (e.g., FitGirl or ElAmigos) for Crysis 3 . However, given the age of the game, the RG Mechanics version remains stable once this single DLL issue is resolved.
If you downloaded the RG Mechanics repack of Crysis 3 and are greeted by a "cryea.dll is missing from your computer" error when launching the game, you are not alone. This is one of the most common issues with repackaged games. Rg Mechanics Crysis 3 Cryea Dll Missing