Masks
PvP
Lava Mask
You can craft this mask at the Accessories NPC in Lava Biome in Prestige 6. This Helmet can be evolved by using 
Lava Evolve Orb.
Dinosaur Mask
You can craft this mask at the Accessories NPC in Dino Biome in Prestige 6. This Helmet can be evolved by using 
Dino Evolve Orb.
Knight Mask
You can craft this mask at the Trophy Exchanger NPC in the PvP Rewards Map (in Port Alveus). You can also craft it at the Family Tower Rewards in Prestige 4.
Batman Mask
You can craft this mask at the Monthly Reward NPC in Port Alveus. You can also craft this mask at Colored Acorn Craft NPC in Quest Hub.
Honeybee Shades
You can craft this mask at the Hardcore Rewards NPC in Prestige 4.
PvE
Sky Mask
You can craft this mask at the Accessories NPC in Sky Biome in Prestige 6. This Helmet can be evolved by using 
Sky Evolve Orb.
Monocle [PvE]
You can craft this mask at Instant Combat Coupon NPC in NosVille.
Dark Knight's Mask
You can craft this mask at the Hardcore Rewards NPC in Prestige 4.
Raids
Ice Mask
You can craft this mask at the Accessories NPC in Ice Biome in Prestige 6. This Helmet can be evolved by using 
Ice Evolve Orb
Robber Mask
You can craft this mask at Colored Acorn Craft NPC in Quest Hub.
Monocle
You can craft this mask at Instant Combat Coupon NPC in NosVille.
Mask of the Elite
You can craft this mask at the Kan's Rewards NPC in Prestige 4.
Shadow King's Mask
You can craft this mask at the Family Tower Rewards NPC in Prestige 4.
Other
Star Mask
You can craft this mask at the Accessories NPC in Star Biome in Prestige 6. This Helmet can be evolved by using 
Star Evolve Orb.
[Premium] Stone Mask
You can craft this mask at Stone Coupon NPC in Port Alveus.
Stone Mask
You can craft this mask at the Merchant's Materials NPC in Stone System map in Prestige 6.
This mask can be upgraded with the 
Stone Upgrade Scroll. The maximum upgrade is +5.
Abyssal Eye Bandage A
You can obtain this mask from the Vessel Event.
Super Mask
You can craft this mask at the Betting Coupon NPC in Port Alveus.
Dragon Mask
You can craft this mask at the Carve Coupon NPC in Port Alveus.