Royal Loot Crates produce a very wide range of loot. This list may be incomplete.
Aleth Essence Amplifier Charm Ancient Cheese Ancient Potion Ancient String Cheese Potion Animatronic Bird Antiskele Charm Arcanevine Artisan Charm Bag of Living Essences Baitkeep Charm Barnacle Ber Essence Black Powder Charm Blue Pepper Seed Bottled Cold Fusion Bottled-Up Rage Bravery Charm Brie Cheese Brie String Cheese Cactus Charm Calcified Rift Mist Canister Ring Cavern Fungus Champion Charm Checkmate Cheese Cheddar Cheese Cherry Charm Cherry Potion Chi Belt Heirloom Chi Belt Token Chi Claw Heirloom Chi Claw Token Chi Fang Heirloom Chi Fang Token Clarity Charm Clockwork Cog Coconut Timber Copper Bead Creamy Gnarled Sap Creamy Havarti Cheese Crescent Cheese Crumbly Rift Salts Crunchy Cheese Crunchy Havarti Cheese Cynd Essence Damaged Coral Fragment Delicious Stone Derr Power Charm Desert Horseshoe Dewthief Petal Diamond Divine Orb Dol Essence Door Guard Charm Dragonbane Charm Dragonvine Cheese Dreaded Charm Dreamfluff Herbs Drill Charge Duskshade Petal Dusty Coal Charm Elub Power Charm Empowered Anchor Charm Enerchi Enerchi Charm Est Essence Extreme Power Charm Fel Essence Fire Bowl Fuel Fire Salt Flamebane Charm Flameshard Flawed Orb Flawless Orb Fool's Gold Forgotten Charm Fort Rox Portal Console Fort Rox Portal Core Fusion Fondue Galleon Gouda Gauntlet Potion Tier 2 Gauntlet Potion Tier 3 Gauntlet Potion Tier 4 Gauntlet Potion Tier 5 Gauntlet Potion Tier 6 Gauntlet Potion Tier 7 Gauntlet Potion Tier 8 Gemstone Gilded Cheese Glowing Gruyere Cheese Gnarled Charm Gnarled Potion Gold Golden Anchor Charm Gouda Cheese Graveblossom Petal Greasy Glob Charm Greater Radioactive Blue Potion Greater Wicked Gnarly Potion Grilled Cheese Grub Salt Charm Grubling Chow Charm Gumbo Cheese Gur Essence Heatproof Mage Cloth Hix Essence Icuri Essence Inferno Havarti Cheese Inferno Pepper Infused Plate Ionized Salt Iron Pellet King's Credit Lantern Oil Limelight Cheese Limestone Brick Living Shard Luck Charm Lucky Power Charm Lunaria Petal Magic Seed Magical Havarti Cheese Magical String Cheese Magmatic Crystal Charm Marble Cheese Master Belt Shard Master Claw Shard Master Fang Shard Master Fusion Cheese Meteorite Piece Mineral Mining Charm Mist Canister Molten Glass Moon Cheese Mouse Scale Nerg Power Charm Nightshade Nightshade Farming Charm Oasis Bead Oxygen Canister Packet of Flour Pinch of Annoyance Plate of Fealty Plumepearl Herbs Polluted Parmesan Cheese Polluted Parmesan Potion Pollutinum Portal Scrambler Power Charm Powercore Hammer Predatory Processor Prospector's Charm Pungent Havarti Cheese Quantum Quartz Radioactive Blue Cheese Radioactive Blue Cheese Potion Radioactive Curd Radioactive Sludge Rainy Cheese Rainy Potion Raisins of Wrath Rancid Radioactive Blue Cheese Rare Map Dust Realm Ripper Charm Red Pepper Seed Red Sponge Charm Regal Charm Rift Antiskele Charm Rift Cherries Rift Circuit Chips Rift Curd Rift Dust Rift Rumble Cheese Rift Ultimate Luck Charm Rift Ultimate Lucky Power Charm Rift Ultimate Power Charm Rift Vacuum Charm Riftgrass Riftiago Cheese Riftiago Potion Rift-torn Roots Roof Rack Charm Rook Crumble Charm Rumble Cheese Rune Runic Cheese Runic Potion Runic String Cheese Runic String Cheese Potion Sacred Script Safeguard Charm Sand Dollar Sandblasted Metal Sap-filled Thorns Savoury Vegetables Scholar Scroll Scientist's Charm Scrap Metal Searcher Charm Seashell Shadowvine Shard of Glass Shell Cheese Sheriff's Badge Charm Shine Charm Shuffler's Cube Silver Bolt Silver Tome of Wisdom Simple Orb Soap Charm Softserve Charm Sphynx Crystal Spicy Havarti Cheese Spiked Anchor Charm Sponge Charm Stagnant Charm Stale Cheese Sticky Charm Super Attraction Charm Super Cactus Charm Super Luck Charm Super Power Charm Super Salt Charm Super Warpath Archer Charm Super Warpath Commander's Charm Super Warpath Scout Charm Super Warpath Warrior Charm Supply Schedule Charm Sweet Havarti Cheese Swiss Cheese Tasty Spider Mould Taunting Charm Tech Power Core Terre Ricotta Cheese Terre Ricotta Potion Timesplit Charm Tin Scrap Tiny Sprocket Token of the Cheese Belt Token of the Cheese Claw Token of the Cheese Fang Tournament Token Tower Mana Ultimate Anchor Charm Ultimate Attraction Charm Ultimate Charm Ultimate Luck Charm Ultimate Lucky Power Charm Ultimate Power Charm Ultimate Spore Charm Undead Emmental Potion Unstable Charm Unstable Crystal Vanilla Bean Vanilla Stilton Cheese Vengeful Vanilla Stilton Cheese War Scrap Warpath Archer Charm Warpath Commander's Charm Warpath Portal Console Warpath Portal Core Warpath Scout Charm Warpath Warrior Charm Water Jet Charm Wax Charm Wealth Charm White Cheddar Cheese Wicked Gnarly Potion Windy Cheese Windy Potion Yellow Pepper Seed Yellow Sponge Charm