Stardew Valley Adventurer’s Guild Guide

Monster Eradication

The Adventurer’s Guild is located east of the Mines entrance and serves as the hub for all combat-related activities in Stardew Valley. Run by Marlon and Gil, the guild offers monster eradication goals, equipment purchases, and a convenient way to sell monster loot. This comprehensive guide covers everything you need to know about the Adventurer’s Guild.

Unlocking the Adventurer’s Guild

Requirements

To unlock the Adventurer’s Guild, you must:

Enter the Mines (unlocked on Spring 5, Year 1)
Reach Mine Level 5
Kill at least 10 Green Slimes
Receive a mail invitation from Marlon

The Initiation Quest

After entering the Mines and encountering slimes, you’ll receive a letter from Marlon inviting you to the guild. Once you kill 10 slimes (tracked automatically), the guild will be permanently unlocked.

Tip: Green Slimes appear on Mine Levels 5-29. They’re slow and easy to kill, making this quest straightforward.

Adventurer’s Guild Layout

Main Hall

Marlon: Sells weapons, armor, and rings
Gil: Awards Monster Eradication rewards
Adventurer’s Board: Tracks your monster kill progress
Sell Box: Sell monster loot directly

Operating Hours

Open: 2:00 PM - 10:00 PM
Closed: During festivals
Members Only: Must complete initiation quest

Monster Eradication Goals

The core feature of the Adventurer’s Guild is the Monster Eradication system. Kill specific numbers of each monster type to earn unique rewards.

Complete Monster Eradication List

Monster	Count Required	Reward	Reward Type
Green Slimes	1,000	Slime Charmer Ring	Ring
Blue Slimes	Included in above	(Same reward)	-
Void Spirits	150	Savage Ring	Ring
Bats	200	Vampire Ring	Ring
Skeletons	50	Skeleton Mask	Hat
Cave Insects	125	Insect Head	Weapon
Duggies	30	Hard Hat	Hat
Dust Sprites	500	Burglar’s Ring	Ring
Rock Crabs	60	Crab Cakes Recipe	Recipe
Mummies	100	Arcane Hat	Hat
Pepper Rex	50	Knight’s Helmet	Hat
Serpents	250	Napalm Ring	Ring
Magma Sprites	150	Hot Java Ring	Ring

Monster Details and Strategies

Slimes (Green/Blue) - 1,000 Kills

Type	Location	HP	Damage	Tips
Green Slime	Mines 5-29	24	5	Basic enemy, very easy
Blue Slime	Mines 40-79	106	7	Slightly tougher

Strategy: The Mines levels 5-29 are perfect for farming Green Slimes. They respawn when you re-enter a level. With the Slime Charmer Ring, slimes will no longer damage you.

Slime Charmer Ring Effect: Prevents all damage from slimes.

Void Spirits - 150 Kills

Type	Location	HP	Damage	Tips
Shadow Shaman	Skull Cavern 100+	80	17	Casts healing spells
Shadow Brute	Skull Cavern 100+	150	20	High damage

Strategy: These only appear in Skull Cavern levels 100+. Bring strong weapons and healing items. They’re dangerous but the Savage Ring is worth it.

Savage Ring Effect: Gain a short speed boost after killing a monster.

Bats - 200 Kills

Type	Location	HP	Damage	Tips
Bat	Mines 30-119	24	6	Basic flying enemy
Frost Bat	Mines 40-79	36	7	Ice damage
Lava Bat	Mines 80-119	80	15	Fire damage
Iridium Bat	Skull Cavern	300	30	Very dangerous

Strategy: Bats are common throughout the Mines. You’ll likely complete this naturally while exploring. The Vampire Ring provides health regeneration.

Vampire Ring Effect: Gain 2 health after killing a monster.

Skeletons - 50 Kills

Type	Location	HP	Damage	Tips
Skeleton	Mines 70-79	100	10	Throws bones

Strategy: Farm Mines levels 70-79. Skeletons are slow but can be annoying with their bone throws. The Skeleton Mask is a cosmetic hat.

Cave Insects - 125 Kills

Type	Location	HP	Damage	Tips
Bug	Mines 1-29	1	8	Very weak
Cave Fly	Mines 10-29	22	10	Flying
Grub	Mines 10-29	20	4	Burrows underground

Strategy: Early mine levels (10-29) are best. These enemies are weak and easy to kill. The Insect Head is a decent early-game weapon.

Insect Head Stats: Damage 10-20, Speed +2, Crit Power +10

Duggies - 30 Kills

Type	Location	HP	Damage	Tips
Duggy	Mines 10-29	40	6	Burrows underground

Strategy: Duggies only appear in dirt patches. Wait for them to surface, then attack. The Hard Hat is a cosmetic item.

Dust Sprites - 500 Kills

Type	Location	HP	Damage	Tips
Dust Sprite	Mines 40-79	40	8	Drops coal frequently

Strategy: This is one of the most valuable goals. Dust Sprites drop coal (50% chance), making this excellent for coal farming. Mines 55 is particularly good.

Burglar’s Ring Effect: Monsters have a higher chance of dropping loot.

Rock Crabs - 60 Kills

Type	Location	HP	Damage	Tips
Rock Crab	Mines 1-29	60	5	Disguised as rocks
Lava Crab	Mines 80-119	120	15	Fire damage
Iridium Crab	Skull Cavern	240	15	Very tough

Strategy: Look for rocks that move slightly. Hit them to reveal the crab. The Crab Cakes recipe is valuable for speed boosts.

Crab Cakes Effect: +1 Speed, +1 Defense for 16m 47s

Mummies - 100 Kills

Type	Location	HP	Damage	Tips
Mummy	Skull Cavern	260	30	Revives after death

Strategy: Mummies revive after being killed unless finished with an explosive (bomb or explosive ammo). Use bombs efficiently. The Arcane Hat is cosmetic.

Pepper Rex - 50 Kills

Type	Location	HP	Damage	Tips
Pepper Rex	Skull Cavern	300	15	Fire breath attack

Strategy: These are rare spawns in Skull Cavern. They can drop Dinosaur Eggs. Be patient; this goal takes time. The Knight’s Helmet is cosmetic.

Serpents - 250 Kills

Type	Location	HP	Damage	Tips
Serpent	Skull Cavern	150	12-24	Fast and aggressive
Royal Serpent	Skull Cavern (dangerous)	300	24-48	Very dangerous

Strategy: Serpents are very common in Skull Cavern. You’ll complete this naturally while exploring. The Napalm Ring is powerful but dangerous.

Napalm Ring Effect: Monsters explode on death, dealing damage to nearby enemies (and you!).

Magma Sprites - 150 Kills

Type	Location	HP	Damage	Tips
Magma Sprite	Volcano Dungeon	220	15	Fire element
Magma Sparker	Volcano Dungeon	310	15	Stronger version

Strategy: Found only in the Volcano Dungeon on Ginger Island (version 1.5+). They drop Cinder Shards and Omni Geodes. The Hot Java Ring provides a speed buff.

Hot Java Ring Effect: +1 Speed after killing a monster.

Marlon’s Shop

Marlon sells weapons, armor, and rings. Stock varies based on your mine progress.

Weapons

Weapon	Damage	Stats	Price	Unlock Requirement
Rusty Sword	2-5	None	N/A	Starting weapon
Steel Smallsword	4-8	Speed +2	250g	Mine level 10+
Silver Saber	8-15	Defense +1	750g	Mine level 20+
Pirate’s Sword	14-20	Speed +2	850g	Mine level 30+
Cutlass	9-17	Speed +2	1,500g	Mine level 40+
Iron Edge	12-25	Speed -2, Defense +1, Weight +3	1,900g	Mine level 50+
Forest Sword	8-18	Speed +2, Defense +1	2,000g	Mine level 50+
Claymore	20-32	Speed -4, Defense +2, Weight +3	2,000g	Mine level 60+
Templar’s Blade	22-29	Defense +1	4,000g	Mine level 80+
Obsidian Edge	30-45	Speed -1, Crit Power +10	9,000g	Mine level 90+
Lava Katana	55-64	Defense +3, Crit Power +25, Weight +3	25,000g	Reach mine bottom (level 120)
Galaxy Sword	60-80	Speed +4	50,000g	Not sold - obtained via Prismatic Shard

Armor

Armor	Defense	Price	Unlock Requirement
Leather Boots	1	500g	Available immediately
Work Boots	2	N/A	Not sold - found in mines
Rubber Boots	1	N/A	Not sold - found in mines
Sneakers	1	N/A	Not sold - found in mines
Combat Boots	3	1,250g	Mine level 40+
Tundra Boots	2	N/A	Not sold - found in mines
Thermal Boots	2	N/A	Not sold - found in mines
Dark Boots	4	2,500g	Mine level 80+
Firewalker Boots	3	N/A	Not sold - found in mines
Genie Shoes	1	N/A	Not sold - found in mines
Space Boots	4	5,000g	Reach mine level 110
Emily’s Magic Boots	4	N/A	Not sold - 14-heart event reward
Leprechaun Shoes	2	N/A	Not sold - rare drop
Cinderclown Shoes	6	N/A	Not sold - Volcano Dungeon chest
Crystal Shoes	3	N/A	Not sold - Volcano Dungeon chest

Rings

Ring	Effect	Price	Unlock Requirement
Glow Ring	Emits light	200g	Mine level 10+
Magnet Ring	Increases magnetism	1,000g	Mine level 40+
Amethyst Ring	Knockback +10%	1,000g	Mine level 40+
Topaz Ring	Precision +10%	1,000g	Mine level 40+
Aquamarine Ring	Crit Chance +10%	2,500g	Mine level 40+
Jade Ring	Crit Power +10%	2,500g	Mine level 40+
Emerald Ring	Weapon speed +10%	5,000g	Mine level 80+
Ruby Ring	Attack +10%	5,000g	Mine level 80+
Iridium Band	Glow, Magnetism, Attack +10%	10,000g	Combat level 9

Special Rings (Monster Eradication Rewards)

These rings cannot be purchased; they must be earned through monster eradication:

Ring	Effect	How to Obtain
Slime Charmer Ring	Immunity to slime damage	Kill 1,000 Slimes
Vampire Ring	+2 HP per monster kill	Kill 200 Bats
Savage Ring	Speed boost after kill	Kill 150 Void Spirits
Burglar’s Ring	Better monster drops	Kill 500 Dust Sprites
Napalm Ring	Monsters explode on death	Kill 250 Serpents
Hot Java Ring	+1 Speed after kill	Kill 150 Magma Sprites

Selling Monster Loot

The Adventurer’s Guild has a unique feature: a sell box specifically for monster loot. This is often more convenient than waiting for the shipping bin.

Monster Loot Prices

Item	Sell Price	Source
Slime	5g	All slimes
Bat Wing	15g	All bats
Solar Essence	40g	Ghosts, Squid Kids, Metal Heads
Void Essence	50g	Shadow Brutes, Shadow Shamans, Serpents
Bone Fragment	2g	Skeletons, Lava Lurks
Cinder Shard	20g	Magma Sprites (Volcano Dungeon)
Bug Meat	8g	Bugs, Grubs, Cave Flies
Hardwood	15g	Various sources

Best Loot to Sell

Void Essence - 50g each, farm Shadow Brutes in Skull Cavern
Solar Essence - 40g each, abundant from ghosts
Bat Wings - 15g each, easy to farm
Cinder Shards - 20g each, from Volcano Dungeon

Combat Skill and Professions

As you fight monsters, you’ll gain Combat experience and level up.

Combat Levels

Level	Rewards
1	Crafting: Sturdy Ring
2	Crafting: Life Elixir
3	Cooking: Roots Platter
4	Crafting: Warrior Ring
5	Profession Choice: Fighter or Scout
6	Crafting: Oil of Garlic
7	Cooking: Roots Platter, Crafting: Ring of Yoba
8	Crafting: Thorns Ring, Slime Egg-Press
9	Crafting: Iridium Band, Squid Ink Ravioli
10	Profession Choice (based on level 5)

Combat Professions

Level 5 Choice:

Profession	Effect
Fighter	All attacks deal +10% damage (+15 HP)
Scout	Critical strike chance +50%

Level 10 Choice (if Fighter):

Profession	Effect
Brute	Damage +15%
Defender	+25 HP

Level 10 Choice (if Scout):

Profession	Effect
Acrobat	Cooldown on special moves cut in half
Desperado	Critical strikes are deadly

Recommendation: Fighter > Brute is best for consistent damage output.

Tips for Efficient Monster Farming

General Strategies

Use the Right Weapon: Galaxy Sword (from Prismatic Shard) is best-in-slot
Equip Useful Rings: Iridium Band + Burglar’s Ring is a great combo
Eat Buff Food: Spicy Eel (Speed + Luck) or Crab Cakes (Speed + Defense)
Bring Healing Items: Life Elixirs or high-healing food
Use Staircases: Skip levels in Skull Cavern to find target monsters faster

Specific Monster Farming Locations

Monster	Best Location	Strategy
Slimes	Mines 5-29	Re-enter level repeatedly
Dust Sprites	Mines 55	Excellent coal farming spot
Bats	Mines 30-50	Natural progression
Skeletons	Mines 70-79	Farm these specific levels
Serpents	Skull Cavern 1-50	Very common
Void Spirits	Skull Cavern 100+	Use staircases to reach deep levels
Mummies	Skull Cavern 100+	Bring bombs
Pepper Rex	Skull Cavern	Rare spawn, be patient
Magma Sprites	Volcano Dungeon 1-5	First levels have many

Daily Routine for Eradication Goals

Early Game:

Visit Mines 5-29 for slimes
Progress naturally through levels for other monsters

Mid Game:

Farm Dust Sprites for coal and Burglar’s Ring
Delve deep in Skull Cavern for Void Spirits

Late Game:

Focus on remaining goals (usually Pepper Rex, Mummies)
Use Staircases aggressively in Skull Cavern

Adventurer’s Guild and Perfection

Completing all Monster Eradication Goals is required for 100% Perfection. This includes:

All 12 monster types listed above
The Volcano Dungeon monsters (Magma Sprites) added in 1.5

Tips for Perfection:

Start working on goals early
The Burglar’s Ring helps with other collection goals
Don’t neglect the Volcano Dungeon after unlocking Ginger Island

Conclusion

The Adventurer’s Guild is essential for any combat-focused player in Stardew Valley. The Monster Eradication Goals provide long-term objectives with valuable rewards, while Marlon’s shop offers crucial equipment upgrades. Whether you’re working toward Perfection or just want to become the ultimate monster hunter, the Adventurer’s Guild has everything you need.

Remember: The journey to completing all eradication goals is long, but the rewards - especially the rings - are well worth the effort. Happy hunting!

Stardew Valley Adventurer's Guild Guide - Monster Eradication and Rewards