Best Mid Game Bosses in OSRS (2026)

If you've already moved past beginner bosses and your next goal is building a 100M+ GP bank, you're entering what many players consider the most rewarding stage of Old School RuneScape: the MID GAME.

This is where bossing truly starts to pay off. Fights become more mechanically engaging, unique drops are worth chasing, and for the first time, endgame gear stops feeling like a distant dream. Whether you're saving for a Twisted Bow, Tumeken's Shadow, or simply upgrading your account one piece at a time, these bosses offer some of the best GP and progression in the game.

In this guide, we'll rank the best mid game bosses in OSRS, starting with beginner-friendly encounters and working all the way up to bosses capable of generating 9M+ GP per hour. Along the way, you'll also learn the mechanics and combat skills that will prepare you for Old School RuneScape's true endgame.

You may be interested our Guide:

What Makes a Boss a Mid Game Boss in OSRS?

Not every boss is meant for maxed accounts or players with billions to spend on gear. Mid game bosses are the sweet spot where the difficulty starts ramping up, the loot becomes genuinely valuable, and every upgrade feels meaningful.

Most mid game bosses share several key traits:

Recommended for players with roughly 75–100 Combat.
Introduce mechanics that require proper positioning, prayer switching, or gear swaps.
Offer significantly better GP than early-game bosses.
Reward gear upgrades that can carry you into late-game PvM.
Prepare you for high-level encounters like Theatre of Blood, Tombs of Amascut, and other endgame content.

If your goal is to build a strong cash stack without relying entirely on Slayer or AFK money makers, these are the bosses you should prioritize.

Perilous Moons

If you're just getting into serious PvM, Perilous Moons is arguably the best place to start.

Unlocked after completing the Perilous Moons quest, this activity is located beneath Cam Torum in Varlamore and is designed for players with around 75 Combat.

One of the biggest advantages is how forgiving the encounter is. You'll fight three different bosses, one at a time, with the ability to fully restock between fights without ever leaving the dungeon. That makes learning mechanics much less punishing compared to most other bosses.

Why Start with Perilous Moons?

Great introduction to boss mechanics.
Mistakes aren't heavily punished.
No long banking trips between kills.
Perfect for practicing PvM rotations.

Profit Potential

Around 2M GP per hour

Notable Drops

The biggest rewards are the three Moon armor sets:

Blood Moon Armor
Blue Moon Armor
Eclipse Moon Armor

All three sets require only 50 Defence, making them excellent mid game gear and a solid stepping stone before investing in upgrades like Bandos equipment.

Royal Titans

The Royal Titans were practically designed to teach one of the most important PvM skills in OSRS:

Gear switching.

During the fight you'll face:

Eldric, the Ice King
Brandr, the Fire Queen

The mechanics are straightforward but effective. Whenever a Titan moves away, you'll swap to Ranged. As soon as it closes the distance, you'll switch back to Melee.

The encounter can be completed:

Solo
In a duo

Making it one of the best bosses to learn alongside a friend.

Profit Potential

Around 2M GP per hour

Best Drops

Mystic Vigor
Deadeye
Crowns
Twinflame Staff

Besides the GP, Royal Titans is excellent practice for more advanced PvM where fast gear switches become second nature.

Want to gear up to face the new Maggot King boss easily and safely? Check out our CATALOG.

Hueycoatl

If you've never tried group bossing before, Hueycoatl is one of the easiest places to start.

This massive serpent can be found in Varlamore and only requires completing the short quest Children of the Sun.

One of its biggest strengths is its flexibility. You can fight it:

With a small group
With up to 20 players

That makes it accessible whether you're learning with friends or joining public masses.

What You'll Learn

Hueycoatl introduces several mechanics that become common in later PvM encounters:

Multi-phase boss mechanics.
Team movement and positioning.
Coordinating with other players.
Reading boss attacks while managing mechanics.

Profit Potential

Around 2.2M GP per hour

Valuable Drops

Some of the most desirable rewards include:

Dragon Hunter Wand
Tome of Earth

If you're looking to get comfortable with coordinated PvM before tackling more demanding group content, Hueycoatl is one of the best stepping stones available.

Vorkath

If you're looking for a boss that prints GP consistently, Vorkath is hard to beat. Unlike many bosses where most of your profits depend on landing a jackpot unique, Vorkath delivers steady income almost every trip.

You'll unlock this boss after completing:

Dragon Slayer II

What makes Vorkath stand out is that a huge portion of your profit comes from its regular loot rather than rare drops. Even if your RNG isn't cooperating, you'll still walk away with solid GP thanks to:

Dragon bones
Valuable resources
High alchables
Crafting materials

This makes Vorkath one of the most reliable money makers in the entire mid game.

GP per Hour

Around 4M GP per hour

Once you master the mechanics, kills become incredibly smooth and consistent. The biggest factor in maximizing your profit isn't luck it's reducing downtime between kills and banking efficiently.

Zulrah

For years, Zulrah has remained one of the most iconic money-making bosses in OSRS. It's also one of the toughest bosses for newer players to learn because of its multiple rotations.

To access Zulrah, you'll need to complete:

Regicide

The fight revolves entirely around memorizing attack patterns and positioning correctly during each phase. At first, it can feel overwhelming, but once the rotations become muscle memory, Zulrah turns into one of the smoothest and most profitable bosses you can farm.

GP per Hour

Beyond the GP, Zulrah is fantastic for improving core PvM skills like:

Reading boss mechanics.
Fast movement and positioning.
Prayer switching.
Building consistency under pressure.

Those skills transfer directly into many late-game PvM encounters.

Corrupted Gauntlet

Many players consider the Corrupted Gauntlet the fairest PvM challenge in Old School RuneScape, and honestly, it's also one of the bosses that took me the longest to master.

The reason is simple: everyone starts on equal footing.

Every run begins with absolutely nothing, forcing you to:

Gather your own resources.
Craft your armor.
Create your weapons.
Manage your time efficiently before the final fight.

There's no expensive gear to carry you here. Success comes down almost entirely to your mechanics, decision-making, and execution.

Requirement

To unlock the Gauntlet, you'll need to complete:

Song of the Elves

If you're new to the content, start with the Normal Gauntlet before jumping into the Corrupted version unless you're okay with pulling your hair out while learning.

GP per Hour

Up to 4.7M GP per hour

The Corrupted Gauntlet is one of the best ways to build wealth if your stats are strong but your bank isn't. Since every run provides its own gear, you don't need expensive equipment to earn excellent GP.

Araxxor

If you're looking for one of the toughest Slayer encounters before reaching true endgame PvM, Araxxor should be at the top of your list.

This boss is widely considered the strongest Slayer boss in the game right now and serves as an excellent stepping stone into high-level PvM.

One of the most important things to know is that Araxxor is weak to Crush weapons, so bringing the right setup will have a huge impact on both your kill speed and overall profit.

GP per Hour

Around 5.3M GP/hr

Best Drops

Araxyte Fang

Noxious Halberd

These are some of the most valuable unique drops available for advanced mid game players, making Araxxor well worth learning once you unlock it.

Phantom Muspah

If you prefer solo PvM, Phantom Muspah is easily one of the best bosses to grind once you're ready to move beyond Vorkath and Zulrah.

You'll unlock the fight after completing:

Secrets of the North

The encounter constantly switches between different combat styles, forcing you to adapt on the fly. Throughout the fight you'll deal with:

Magic attacks.

Ranged attacks.

A melee shield phase.

Learning how to react to each phase quickly is what separates consistent kills from frustrating deaths, making Muspah an excellent boss for improving your PvM fundamentals.

GP per Hour

Around 6M GP/hr

Best Reward

Your primary goal is collecting five Venator Shards, which can be combined into the highly sought-after:

Venator Bow

Even outside of unique drops, Muspah offers consistently strong loot, making it one of the best solo money makers in the mid game.

Desert Treasure II Bosses

Completing Desert Treasure II unlocks four of the best money-making bosses in Old School RuneScape. Each encounter introduces unique mechanics and rewards players who master increasingly difficult PvM challenges.

If your goal is to transition into endgame content, this is where the real grind begins.

Boss Difficulty Average GP/hr Notes

Duke Sucellus Easy 9.4M GP/hr The best starting point and by far the easiest boss to learn.

Vardorvis Hard 8.4M GP/hr The most mechanically demanding of the four. I'd recommend saving this one for last.

Leviathan Medium-Hard 6.7M GP/hr A fast-paced fight that heavily rewards good reactions and precise movement while still offering excellent GP.

The Whisperer Hard 6.8M GP/hr Focuses heavily on movement and mechanic execution. Despite its solid profit, many players choose to skip farming this boss altogether.

Every one of these bosses pushes your mechanics further than traditional mid game PvM. By the time you're consistently farming all four, you'll have developed the skills needed for raids and virtually every endgame challenge OSRS has to offer.

Why Desert Treasure II Bosses Are Worth Learning

Besides offering some of the highest GP rates in the game, these bosses teach skills you'll use throughout endgame PvM, including:

Advanced movement and positioning.

Fast prayer switching.

Reading complex boss mechanics.

Maintaining DPS while avoiding damage.

Efficient resource management during long encounters.

Mastering the Desert Treasure II bosses is more than just a money-making milestone it's the point where most players officially transition from the mid game into Old School RuneScape's true endgame.

Boss	Difficulty	Average GP/hr	Notes
Duke Sucellus	Easy	9.4M GP/hr	The best starting point and by far the easiest boss to learn.
Vardorvis	Hard	8.4M GP/hr	The most mechanically demanding of the four. I'd recommend saving this one for last.
Leviathan	Medium-Hard	6.7M GP/hr	A fast-paced fight that heavily rewards good reactions and precise movement while still offering excellent GP.
The Whisperer	Hard	6.8M GP/hr	Focuses heavily on movement and mechanic execution. Despite its solid profit, many players choose to skip farming this boss altogether.