OSRS Brimstone Key Drop Table Guide
In Old School RuneScape (OSRS), the Brimstone Key is a coveted item tied to Slayer tasks assigned by Konar quo Maten, offering players a chance to unlock valuable loot from the Brimstone Chest. This guide dives into the Brimstone Key drop table, how to obtain keys, the mechanics behind their drop rates, and what rewards you can expect. Whether you’re a seasoned Slayer or just starting, understanding the Brimstone Key system can boost your profits and enhance your gameplay. Let’s explore everything you need to know to make the most of this unique feature.
Brimstone Keys are special items dropped by monsters during Slayer tasks assigned by Konar quo Maten, a Slayer master located in the Kahlith settlement on Mount Karuulm. These keys unlock the Brimstone Chest, situated next to Konar, which contains a variety of rewards designed to supplement your Slayer profits. Introduced on February 7, 2019, as part of the Kebos Lowlands update, Brimstone Keys add an exciting layer to Slayer by offering randomized loot with potential for rare and valuable items.
How to Obtain Brimstone Keys
To get Brimstone Keys, you must be on a Slayer task from Konar, who requires a minimum combat level of 75 to assign tasks. Keys are dropped by monsters you kill during these tasks, with the drop rate influenced by the monster’s combat level and other factors. Notably, Brimstone Keys are exclusive to Konar’s tasks, so you won’t get them from other Slayer masters like Duradel or Nieve.
Why Focus on Brimstone Keys?
Brimstone Keys are worth pursuing because they provide access to the Brimstone Chest, which offers loot averaging around 106,000 GP per key, based on recent data. This makes them a lucrative bonus for Slayer tasks, especially for players aiming to maximize profits while training Slayer. Additionally, the chest contains unique items unavailable elsewhere, making it appealing for collectors and Ironmen.
Brimstone Key Drop Mechanics
Understanding how Brimstone Keys drop is crucial for optimizing your Slayer sessions. The drop rate isn’t fixed—it varies based on several factors, primarily the combat level of the monster you’re fighting. Let’s break down the mechanics to help you target the best tasks for key drops.
Drop Rate Formula Explained
The probability of receiving a Brimstone Key increases with the monster’s combat level, following two distinct formulas:
- For monsters below level 100: The drop rate follows a curve, calculated as
1 / (100 + (0.2 * (100 - level)²)). This means lower-level monsters have significantly worse drop rates. - For monsters level 100 and above: The drop rate scales linearly, approximated as
1 / (120 - (level / 5)), capping at 1/50 for level 350+ monsters.
For example, a level 100 monster has a drop rate of about 1/100, while a level 350 monster caps at 1/50. These rates improve slightly if the monster has a Slayer level requirement, boosting the drop chance by 20%.
Superior Slayer Monsters and Keys
Superior Slayer monsters, which can spawn during Konar tasks if unlocked, always drop a Brimstone Key when killed. This makes tasks with high superior spawn rates—like Dust Devils or Nechryaels—particularly attractive for key farming. However, superiors are rare, so don’t rely solely on them for consistent keys.
Factors That Boost Drop Rates
Several conditions can enhance your chances of getting a Brimstone Key:
- Slayer Level Requirements: Monsters requiring a specific Slayer level (e.g., Dust Devils at Slayer level 65) grant a 20% boost to the drop rate.
- Higher Combat Levels: Prioritize tasks with monsters at or above level 100 for better drop rates.
- Task Location: Konar’s tasks often specify locations, which may limit your options but don’t directly affect key drop rates.
Brimstone Chest Rewards
The Brimstone Chest is where the real excitement lies. Each key unlocks a roll on the chest’s drop table, offering a mix of common resources and rare items. Below, we outline the key rewards and their significance.
Average Loot Value
Based on extensive community data, the average value of a Brimstone Chest opening is approximately 106,076 GP. This figure fluctuates with market prices, but it provides a reliable benchmark for expected returns. The chest’s loot is designed to boost Slayer profits without overshadowing monster-specific drops.
Notable Items in the Drop Table
The Brimstone Chest contains a variety of items, ranging from skilling supplies to rare equipment. Here’s a breakdown of key rewards:
| Item | Drop Chance | Approx. Value (GP) | Notes |
|---|---|---|---|
| Broken Dragon Hasta | Rare (exact rate unknown) | ~150,000 | Can be repaired for free by Otto Godblessed. |
| Dusk Mystic Robe Pieces | ~6/1000 per piece | ~500,000–1,000,000 | Unique cosmetic set matching Mount Karuulm’s theme. |
| Noted Raw Fish (e.g., Shark, Manta Ray) | 1/20 chance for fish table | ~10,000–50,000 | Type depends on Fishing level. |
| Runite Ore (Noted) | Common | ~11,000 each | Valuable for Smithing training. |
| Magic Logs (Noted) | Common | ~1,000 each | Useful for Fletching and Firemaking. |
Other common drops include seeds, gems, pure essence, and dragon dart tips, which add consistent value to each chest opening.
Rare Drops and Collection Log
For players chasing completionist goals, the Brimstone Chest offers items for the collection log, particularly the Dusk Mystic Robe set and Broken Dragon Hasta. These are rare, with the mystic pieces having roughly a 1.2% chance per task (assuming two keys), meaning it could take around 83 tasks for a single piece. Patience is key for collectors!
Best Strategies for Farming Brimstone Keys
To maximize your Brimstone Key drops and chest rewards, you need a strategic approach to Slayer tasks. Here are proven tips to optimize your efforts.
Choosing the Right Tasks
Not all Konar tasks are equal for key farming. Focus on monsters with high combat levels and superior spawn potential. Recommended tasks include:
- Dust Devils (Level 110): Decent drop rate (~1/95) and frequent superior spawns.
- Nechryaels (Level 115): Similar drop rate with valuable normal drops.
- Abyssal Demons (Level 124): Slightly better rate (~1/90) and profitable loot.
Avoid low-level tasks like Trolls or Fire Giants, as their drop rates (e.g., 1/200+) are significantly worse.
Task Management and Skipping
Konar’s tasks often come with location restrictions, which can slow you down. Use Slayer points to skip undesirable tasks, but balance this with maintaining a point buffer for unlocks like Superior Slayer. If you’re low on points, consider doing quick tasks to build them up before focusing on high-value ones.
Optimizing Gear and Inventory
To farm keys efficiently:
- Use AoE Attacks: Barrage or Burst spells work well for multi-combat tasks like Dust Devils.
- Bring a Cannon: Speeds up kills, increasing your key-per-hour rate.
- Enable Untradeable Notifications: Prevents missing keys, especially on mobile.
These adjustments can significantly improve your efficiency, especially on longer tasks.
Is Farming Brimstone Keys Worth It?
Deciding whether to prioritize Brimstone Keys depends on your goals. Let’s weigh the pros and cons to help you decide.
Pros of Brimstone Key Farming
- Profit Boost: An average of 106,000 GP per key adds up over multiple tasks.
- Unique Rewards: Dusk Mystic Robes and Broken Dragon Hasta are exclusive to the chest.
- Ironman-Friendly: Noted resources like runite ore and raw fish are valuable for self-sufficient accounts.
Cons to Consider
- Task Restrictions: Konar’s location-specific tasks can be less efficient than other Slayer masters.
- RNG Dependency: Key drops and chest rewards rely heavily on luck, which can be frustrating.
- Opportunity Cost: Time spent on Konar tasks might yield less XP or GP compared to high-level bosses or other Slayer masters.
Who Should Farm Brimstone Keys?
Brimstone Keys are ideal for:
- Mid-level players seeking extra profit while training Slayer.
- Ironmen needing resources like noted fish or ores.
- Completionists aiming to fill the collection log with Dusk Mystic pieces.
High-level players focused on max XP rates or bossing might find other Slayer masters like Duradel more efficient, unless they’re specifically targeting chest rewards.
With an average drop rate of 1–2 keys per task and a chest value of ~106,000 GP, Brimstone Keys offer a solid incentive for Konar tasks. By targeting high-combat-level monsters, optimizing your setup, and managing tasks wisely, you can turn Slayer into a more rewarding experience. Whether you’re after profit, resources, or rare cosmetics, the Brimstone Key drop table has something to offer every OSRS player.