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Stardew Valleyplayers that aren’t particularly drawn to the farming side of the game have always been able to delve into the game’s caves and skull caverns - the game’s 1.5 update also saw a new dungeon added for players to battle through, amongmany other additions.
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While it may seem odd for such a lighthearted game to feature so many deadly monsters, there are several rewards available for slaying certain numbers of the monsters in the game - this guide will help players find and slay the beasts that Marlon’s monster guild has bounties on. When they’re all completed, this will also unlock theProtector of the Valley trophy / achievement.
What Are The Monster Eradication Goals?
First introduced very early in the game, it’s easy to forget that the adventurer’s guild exists - let alone that it features a weapon shop and several bounties on the heads of various monsters. Open from 2PM until 10PM every day, founddirectly right of themines entranceandnear the unlockable quarry, the guild features monster eradication goals that can be found on the board next to Marlon. They are as follows:
Number of kills needed

Slimes of any color
1000

150
Bats of any type
200
50
125
30
500
60
100
250
Marlon’s Phone Number
Some players have reported the Protector of the Valley trophy / achievementnot unlockingwhen thelast goal they completedwas for killing 150 Magma Sprites - while magma sprites are likely the last monster that players will find, they are encouraged to complete its goal as soon as possible to make sure the trophy / achievement unlocks.
Where Can The Monsters Be Found?
When players havesuitably equipped themselves, they’ll simply need to find the monsters and make short work of them. Some are available on certain levels of the mines, while others can only befound in the Calico Desert’s skull caverns, and others still are only available in the volcanodungeon on Ginger Island.
Skull Cavern Monsters
Volcano Dungeon Monsters
When an eradication goal has been completed, a notification will appear in-game - players should then visit the adventurer’s guild and speak to Gil for their reward - Gil sits on the far right side of the guild, next to the fireplace. When the final goal has been completed, the Protector Of The Valley trophy / achievement will unlock.
Stardew Valleyis available on Windows, Mac, Nintendo Switch, PlayStation 4, and Xbox One.