Slimes are one of the basic monsters in Seven Swords, and can be found in nearly every region. Types of slimes include Giant Slimes, Desert Slimes, Green Slimes, etc. Due to their weak nature, many new to intermediate players farm them for experience at the beginning of the game. It is not uncommon to see multiple slimes roaming together in a group. Drops you get from killing these creatures depends on the type of slime killed.
These are the weakest creatures in the game. They can be found in Mollis, Clarus, and Luciora.
They drop Red Potions and Blue Fluids.
Green slimes are very common. They're most likely the second weakest creature in the game. They can be found in Mollis, Clarus, Lucioria, and Mensis.
They drop Red Potion, Yellow Potion, Green Fluid, and First Aid Skills.
Shadow Slimes might be the most common enemy in the game. I don't know if there is a territory in which they are not present. They will target you if you get withing their range. Clerics can use heal spells to damage these slimes.
They drop Red Potion, Yellow Potion, Black Fluid, Lvl 10 Armors, Mini Hide Skill, and Mini Berserk Skill.
Flame Slimes can be found in Albos, Mensis, and Radius. They are extremely uncommon. Flame Slimes are weak against water element. They will target you if you get within their range.
They drop Red Potion, Yellow Potion, White Potion, Red Fluid, Jade Blade, Crystal Rod, Dolphin Bow, Golden Mattock, Fire Element, and Mini Fire Skill.
These can be found in Albos. They will not attack until they are hit. They have a decent amount of health.
Desert Slimes drop Yellow Potion, White Potion, Yellow Fluid, and Earth Element.
Demon Slimes Can be found in Viridis, Mensis, and Mico. They will target you if you get within their range. Demon slimes can be damaged with any Heal skill when using a cleric.
They drop Yellow Potion, White Potion, Purple Fluid, Lvl 30 Armour, Lvl 30 weapons, Steal Skill, and Mini Berserk Skill.
The Giant Slime is the toughest of slimes. It can be found in Viridis, Mico, Mensis, and Stella. They will target you if you get within their range.
Giant Slimes drop Potions, lvl 30 Armour, Water Element, and various accessory Skills.
If you want, use a trick to pin strong slimes to a single spot and use any long range attack to take out even a giant slime, but be careful of shadow slimes behind you. Any shadow Slimes and demon Slimes that come behind you can be killed pretty easily if you are a Cleric. This is due to the fact that both Slimes can be hurt by healing them.