If you are hunting for the best rewards in Broken Blade, the Sky Spire Tower is where you need to focus your time. This 100-floor challenge mode is the only reliable place to farm Holy Grails, which are the key ingredient for crafting the legendary Excalibur sword. I have spent hours grinding through the floors and testing different farming methods so you do not have to waste time figuring it out alone.
In this Broken Blade Sky Spire Tower Guide, I will break down exactly what you need to enter, what rewards wait on each floor range, and how to farm Sky Keys and Holy Grails as fast as possible. Whether you are preparing for your first run or pushing for Floor 100, this guide covers everything you need to know in 2026.
Sky Spire is not a beginner activity. The challenge was added as an endgame loop, and the rewards are designed to keep high-level players engaged for weeks. If you are still leveling up your main story, come back to this guide once you hit the late game.
Table of Contents
What Is Sky Spire Tower in Broken Blade?
Sky Spire Tower is a 100-floor challenge dungeon in Broken Blade where players spend Sky Keys to fight through increasingly difficult enemies. Each floor costs exactly one Sky Key, meaning you need 100 Sky Keys total if you want to clear the entire tower in one session.
The tower is designed as a late-game activity. The enemies scale aggressively after Floor 40, and the real prize, Holy Grails, only start appearing as drops once you pass Floor 40. Many players treat Sky Spire as a weekly farming goal rather than a one-time clear because of the key costs and the grind needed for 100 Holy Grails.
The tower works on a linear progression system. You cannot skip floors or start at Floor 50. Every run begins at Floor 1, which is why key management is so important. If you quit mid-run, you forfeit your remaining keys and must restart from the beginning.
YouTube guides are heavily present for this content, and they complement written breakdowns well. I recommend watching a video walkthrough after reading this guide so you can see the floor layouts and enemy spawn patterns before you commit your keys.
Sky Spire Requirements: Keys, Levels, and Prep
You cannot walk into Sky Spire without preparation. The mode has strict entry costs and level expectations that catch newer players off guard.
Sky Key Requirements (1 Key Per Floor)
You need one Sky Key for every floor you attempt. That means 100 Sky Keys for a full clear, and you will likely need multiple full clears if you are farming Holy Grails for Excalibur. Sky Keys are consumable items that you farm from specific mobs and chests in the open world.
I recommend banking at least 50 Sky Keys before you start a serious push. Running out of keys at Floor 80 is one of the most frustrating experiences in Broken Blade, and it happens more often than you think. The community on Reddit frequently mentions this pain point, so learn from their mistakes and stock up first.
You can buy Sky Keys from some vendors, but the prices are steep. Most players agree that farming is far more efficient than spending gold. Save your gold for gear upgrades and potions instead.
Recommended Level and Gear for Sky Spire
The community agrees that Level 14,700 is the comfortable recommendation for completing Sky Spire without excessive difficulty. You can enter earlier, but the enemies past Floor 60 hit hard enough to one-shot under-leveled players.
For weapons, the Dragon Slayer is widely considered the best choice for clearing Sky Spire. Its damage output and range let you handle the dense mob spawns on the higher floors without taking unnecessary hits. Bring your best armor set and plenty of healing items, because the later floors do not give you room to recover.
If you are below Level 14,700, you can still attempt Sky Spire up to Floor 40. Just treat it as a learning run rather than a farming session. Use the early floors to memorize enemy patterns and test your damage output.
Before you enter, repair your gear and empty your inventory. You will pick up a lot of items during the run, and a full bag forces you to delete loot mid-fight. I also recommend grouping with friends if possible. While Sky Spire is soloable, having backup damage and healing makes the later floors much safer.
Sky Spire Tower Rewards Breakdown
The rewards change depending on which floor range you are clearing. Knowing what drops where helps you decide whether to push deeper or reset and farm keys again.
Early Floor Rewards (Floors 1 to 40)
Floors 1 through 40 serve as the warm-up phase. You will get basic crafting materials, gold, and experience consumables. These floors are great for newer players who want to test the tower mechanics without burning too many keys.
Do not expect Holy Grails here. The early floors are about padding your inventory with useful but common items. I usually speedrun these floors in under 15 minutes to save time for the real farming zones.
You also get a small amount of reputation points for each early floor. These points add up and can be exchanged for bonus crafting materials at the tower exit vendor. Do not skip talking to the vendor after your run.
Mid Floor Rewards (Floors 41 to 60)
This is where Sky Spire becomes worth the effort. Starting at Floor 41, Holy Grails begin dropping from enemies and chests. The drop rate in this range is 29.6 percent, which is decent but not amazing.
You will also start seeing rarer crafting materials and higher-tier gold bundles. If you are under Level 14,700, this range is probably your soft cap until you upgrade your gear or level up more. The 29.6 percent rate means you should expect roughly 6 Holy Grails per 20 floors on average.
In addition to Holy Grails, floors 41 to 60 occasionally drop rare weapon enhancement stones. These stones are used to upgrade endgame gear and have high value on the player market. Even if you do not need them, they sell for a solid amount of gold.
High Floor Rewards (Floors 61 to 100)
Once you reach Floor 61, the Holy Grail drop rate jumps to 38.61 percent. That is a significant increase, and it makes the final 40 floors the most efficient place to farm Holy Grails in the entire game.
The enemies are tougher, but the reward density makes pushing worth it. Floor 100 offers a completion bonus that includes a large cache of gold and a guaranteed high-tier item. If you have the keys and the level, always push to 100.
Floors 71 to 90 introduce elite versions of standard enemies. These elites have higher health pools but also carry an improved chance to drop double Holy Grails. Floor 100 is the only place where triple Holy Grail drops can occur, though the chance is low.
How to Farm Sky Keys Fast
Sky Keys are the gatekeeper to everything good in Sky Spire. You will need hundreds of them, so farming efficiently is non-negotiable.
The fastest method is to farm the mobs that drop Sky Keys in the open world while running your daily quests. Many players on Reddit and YouTube have confirmed that combining key farming with your normal rotation saves hours compared to dedicated grinding sessions. The mobs respawn on a timer, so memorize the route and loop it.
Daily quests in the open world often reward Sky Keys directly upon completion. Check your quest log every day and prioritize any quest that lists keys as a reward. These quests reset daily, so missing them slows your progress significantly.
Holy Chests also have a chance to contain Sky Keys. I open every Holy Chest I find while doing other activities, and the keys add up faster than you expect. Do not ignore side chests just because they look common. A 15-minute chest route every day can net you 10 to 15 extra keys over a week.
Another tip is to farm keys during events that boost drop rates. Broken Blade occasionally runs weekend events that increase world drop rates, and those are the best times to stockpile. Save your major Sky Spire pushes for after these events so you have a full inventory.
If you have a mount or fast travel ability, use it to cut down travel time between farming spots. Every second matters when you are trying to build a stockpile of 100 keys. I can complete a full farming loop in about 8 minutes with optimized movement.
Holy Grail Drop Rates and Farming Methods
Holy Grails are the endgame material everyone wants. They are rare, they are slow to farm, and they are absolutely required for Excalibur.
Drop Rates by Floor Range
From Floor 41 to Floor 60, Holy Grails drop at a 29.6 percent rate. From Floor 61 all the way to Floor 100, the rate improves to 38.61 percent. There is no drop chance before Floor 41, so do not waste keys hunting for them in the early stages.
Those numbers come from community data and testing across hundreds of runs. They are consistent enough that you can plan your farming around them. If you need 100 Holy Grails for Excalibur, expect to run roughly 250 to 300 floors total depending on your luck. At 38.61 percent, you should average about 8 Holy Grails per 20 floors in the high range.
To put the math in perspective, running floors 61 to 100 twice should yield roughly 15 to 16 Holy Grails on average. That means you need about 6 to 7 full high-floor clears to reach the 100 Holy Grail requirement for Excalibur. At 20 minutes per floor set, that is roughly 4 to 5 hours of active farming.
Holy Chest Alternative Method
Holy Chests are an alternative way to get Holy Grails without burning Sky Keys. These chests spawn in specific world locations and can be farmed on a timer. The drop rate is lower than Sky Spire, but it is free.
I mix Holy Chest farming with Sky Spire runs to keep the grind from getting boring. Chest runs take about 10 minutes per cycle, and I usually do them while waiting for key stockpiles to build. It is not the fastest method, but it breaks up the monotony and adds a steady trickle of extra Holy Grails.
The best Holy Chest route starts at the Jotunheim gate and loops through the northern ruins. There are 8 chests on this route, and they respawn every 5 minutes. I run the loop while waiting for group invites or server events.
Some players report getting 2 to 3 Holy Grails per hour from dedicated chest farming. That is slower than Sky Spire, but it costs zero keys and carries zero risk of dying. If you are low on keys or under-leveled, this is your best path.
How to Craft Excalibur in Jotunheim
Once you have 100 Holy Grails, you can craft the Excalibur sword at the crafting station in Jotunheim. Excalibur is one of the strongest weapons in Broken Blade, and it is the reason most players grind Sky Spire in the first place.
Head to the Jotunheim region and locate the special crafting station. Interact with it, select the Excalibur recipe, and provided you have the 100 Holy Grails and any other required materials, the craft completes instantly. The sword has massive stats and a unique moveset that makes it worth every hour of farming.
Excalibur requires more than just Holy Grails. Check the recipe at the Jotunheim station before you start farming so you can collect the secondary materials in parallel. Usually, you need a stack of rare metal bars and a specific crafting catalyst. Gathering these ahead of time prevents the frustration of hitting 100 Holy Grails and still being unable to craft.
Excalibur pairs well with the Dragon Slayer for different situations. While Dragon Slayer is the go-to for Sky Spire clears, Excalibur dominates in boss fights and PvP. The grind is long, but the payoff is real.
Best Tips for Clearing Sky Spire Tower
I have run Sky Spire more times than I can count, and these tips have saved me the most headaches.
Bring the Dragon Slayer. The weapon is not mandatory, but it makes the higher floors significantly easier. Its area damage clears groups fast, which matters when you are facing timed waves.
Never start a run with fewer than 30 keys. If you run out, you lose progress and have to start over. Bank keys in bulk, then commit to a full clear. The Reddit community consistently warns about this, and it is the most common mistake new players make.
Focus on floors 41 to 100 for Holy Grails. The early floors are good for practice, but they do not drop the material you actually need. Skip them if you are confident in your build and just want to farm.
Use healing items liberally. There is no bonus for finishing with full health, and dying on Floor 95 because you were saving potions is a terrible feeling. I bring a full stack of 50 potions and use them without hesitation.
Time your runs during server quiet hours. Lag spikes on crowded servers can cause deaths on the harder floors. I run Sky Spire early in the morning or late at night when the server population is lower.
Consider recording your runs if you keep dying on the same floor. Watching your own footage helps you spot positioning mistakes and missed dodge timings. I improved my clear speed by 20 percent after reviewing my first few runs.
If you are struggling on a specific floor, switch to a defensive stance. Sometimes surviving is more important than killing fast. Pop a defense potion and focus on dodging until your cooldowns reset.
FAQ
How do I get Sky Keys in Broken Blade Sky Spire?
You get Sky Keys by farming specific mobs and opening chests in the open world. Combine key farming with your daily quests and run Holy Chest routes for the fastest stockpile.
What rewards can I get from Sky Spire Tower in Broken Blade?
Rewards include gold, crafting materials, experience items, and Holy Grails. Holy Grails start dropping from Floor 41 and become more common from Floor 61 onwards.
How many Sky Keys do I need for Sky Spire?
You need one Sky Key per floor, so 100 Sky Keys total for a full clear from Floor 1 to Floor 100.
What level should I be to complete Sky Spire?
Level 14,700 is the community recommendation for completing Sky Spire comfortably without getting one-shot by late-floor enemies.
How do I get Holy Grails in Broken Blade?
Holy Grails drop from Sky Spire floors starting at Floor 41. You can also get them from Holy Chests in the open world, though at a lower rate.
What is the drop rate for Holy Grails in Sky Spire?
Holy Grails drop at 29.6 percent from Floor 41 to Floor 60, and the rate increases to 38.61 percent from Floor 61 to Floor 100.
Conclusion
The Sky Spire Tower is the ultimate endgame challenge in Broken Blade for anyone chasing the Excalibur sword and other rare rewards. You need 100 Sky Keys for a full clear, Level 14,700 for a comfortable run, and patience to farm Holy Grails at a 29.6 percent or 38.61 percent drop rate depending on your floor range.
Use this Broken Blade Sky Spire Tower Guide to plan your runs, stock your keys, and target the right floors. Good luck with your grind, and I will see you at Floor 100.