Flies is a Legends of Idleon monster: 11 drops.

Flies | Idleon Toolbox

Flies

Have_a_stack_of_exactly_1,000,000_Fruit_Flies_in_your_Storage_Chest.

Fruit_Salad

Have_a_stack_of_exactly_2500_Flies_in_your_Storage_Chest.

Buzz_Buzz

Flies_Card

Increases your Total Defence by 30%. Golden foods are never consumed

Golden_Meat_Pie

Increases Base Dmg by 50. 1% chance to be consumed every time you defeat a monster. Must be equipped in a Food Slot to give its bonus.

Small_Strength_Potion

Hold down on this item to turn 10 Fragments into 1 Talent Point Reset Potion. You'll need 1 open inventory space for this to work.

Talent_Point_Reset_Fragment

Hold down to add a Silver Pen to your Post-Office! You can use it to skip a Delivery!

Silver_Pen

Agile_Stamp

Bag_o_Heads_Stamp

Drag onto any Tool to apply. Success Chance; 100% Uses up 1 slots only if Successful

Tool_Upgrade_Stone_I

Drag onto any Tool to apply. Success Chance; 80% Uses up 1 slots only if Successful

Tool_Upgrade_Stone_II

Drag onto any Equip to apply. Success Chance; 100% Uses up 1 slots only if Successful. WARNING:Mystery Stat has a chance to be Negative, and reduce stats!