Here is the full list of all 50 Resident Evil Revelations achievements. It takes around 50-60 hours to unlock all of the achievements on Windows.
【CAMPAIGN】Clear Infernal difficulty.
【CAMPAIGN】Defeat Rachael before she gets to the cafeteria.
【CAMPAIGN】Defeat 3 enemies with one shock grenade.
【RAID MODE】Clear all stages in Raid mode on Abyss.
【RAID MODE】Reach player level 40.
【RAID MODE】Clear all stages in Raid mode on Trench with an S rank.
【RAID MODE】Clear all stages in Raid mode on Trench.
【RAID MODE】Reach player level 30.
【RAID MODE】Acquire 100 bonuses.
【RAID MODE】Spend 1,000,000 BP in the store.
【RAID MODE】Clear all stages in Raid mode on Chasm with an S rank.
【RAID MODE】Reach player level 20.
【RAID MODE】Inflict 100,000 points of damage to an enemy in one hit.
【RAID MODE】Acquire 50 bonuses.
【RAID MODE】Clear all stages in Raid mode on Chasm.
【RAID MODE】Reach player level 10.
【RAID MODE】Land a fully charged physical attack on an enemy at the same time as your partner.
【RAID MODE】Clear a stage at 5 levels lower than the recommended level.
【RAID MODE】Reach player level 5.
【RAID MODE】Acquire 10 bonuses.
【CAMPAIGN】Clear Casual difficulty or higher.
【CAMPAIGN】Clear Normal difficulty or higher.
【CAMPAIGN】Clear the game in Normal difficulty or above without dying once.
【CAMPAIGN】Clear Episodes 10 - 12.
【CAMPAIGN】Scan all enemy types.
【CAMPAIGN】Scan 30 hidden hand prints.
【CAMPAIGN】Defeat a Malacoda without using a rocket launcher.
【CAMPAIGN】Clear Episodes 7 - 9.
【CAMPAIGN】Defeat a Scarmiglione as a whole without killing both parts of its body separately.
【CAMPAIGN】Evade a Scagdead's instant-death attack.
【CAMPAIGN】Dodge 20 times.
【CAMPAIGN】Clear Episodes 4 - 6.
【CAMPAIGN】Scan 15 hidden hand prints.
【CAMPAIGN】Swim in the Solarium.
【CAMPAIGN】Clear Episodes 1 - 3.
【CAMPAIGN】Defeat 150 enemies.
【CAMPAIGN】Stop an enemy bullet with your knife.
【CAMPAIGN】Land 10 fully charged physical attacks.
【RAID MODE】Acquire Trinity Bonus for the first time.
【RAID MODE】Acquire No Damage Bonus for the first time.
【RAID MODE】Obtain all super rare weapons.
【RAID MODE】Obtain a super rare weapon.
【CAMPAIGN】Scan 1 hidden hand print.
【CAMPAIGN】Scan an enemy for the first time.
【CAMPAIGN】Defeat 10 Oozes with headshots.
【RAID MODE】Clear all stages in Raid mode on Abyss with an S rank.
【RAID MODE】Clear the bonus stage, The Ghost Ship.
【RAID MODE】Reach player level 50.
【RAID MODE】Defeat 10,000 enemies.
【RAID MODE】Acquire 150 bonuses.