Looking for real Stardew Valley mining tips for level 100 in the Skull Cavern? You've come to the right place.

Reaching floor 100 is one of the toughest things Stardew Valley throws at you, but it's mostly a preparation test, not a combat test. I died to serpent swarms, ran out of time, and wasted plenty of lucky days before I figured out a system. Once I stopped fighting everything and started using bombs, staircases, and buffs correctly, I finally triggered the Mr. Qi event. These tips are what actually worked for me.

Know What You're Trying To Do

Before you spend a single stone on staircases, understand what you're actually going for.

The Skull Cavern sits in the desert, and it doesn't have an elevator. Unlike the regular mines, you can't save progress every fifth floor. To go deeper, you have to find ladders or holes on every randomly generated floor.

There's one special target: Floor 100. If you've read Secret Note #10, Mr. Qi will be waiting for you when you reach floor 100 for the first time. He'll let you choose between the Iridium Snake Milk—which permanently increases your max health by 25—or 10,000g. Take the health boost. It's the better pick in my book.

You Need Secret Note #10

Secret Note #10 makes this whole event possible. If you reach floor 100 without reading it, Mr. Qi won't show up.

The note drops randomly from artifact spots, monster drops, fishing treasure, and other secret note sources. Once you have it, read it right away so the quest is active.

Stop Fighting, Start Skipping

The biggest mindset change I had to make was simple: don't fight monsters in the Skull Cavern when you're pushing for floor 100.

Serpents and purple slimes drop some decent stuff, but every second you spend swinging your sword is a second you're not going deeper. Your goal is to skip as many floors as possible using bombs, holes, and staircases.

Your Loadout Checklist

You can't wing a floor 100 run. Bring the right gear and supplies, or the cavern will eat you alive.

Weapon And Equipment Choices

Your weapon matters a lot. The Galaxy Sword is the best all-around choice here. If you have a Prismatic Shard, take it to the three pillars in the desert and stand in the center to get the Galaxy Sword.

For boots, use the best defensive pair you own. Space Boots are great if you've found them. For rings, the Iridium Band is excellent because it gives you light, magnetism, and a damage boost. A Luck Ring also helps if you've got one, but any solid ring combo works as long as you can see drops and grab them without chasing them.

What To Bring: Bombs, Staircases, And Food

Here's the supply stack I bring on every serious run:

  • Bombs: Bring at least 60 to 80 Bombs or Mega Bombs. Bombs break multiple rocks at once, and they're the fastest way to reveal ladders and holes.
  • Staircases: Bring 50 to 100 staircases. Yes, that many. You'll use them on bad floors, infested floors, and final floors near level 100. Each staircase costs 99 stone to craft, so plan ahead.
  • Food: Spicy Eel is the perfect Skull Cavern food because it gives +1 luck and +1 speed. You can buy it from the Desert Trader with Ruby, and serpents also drop it. For a drink, bring Coffee or Triple Shot Espresso. The drink speed buff stacks with food buffs, so you'll move noticeably faster.

Cheese is also great for healing because it has no buff effects. That matters: if you eat a buffed food while Spicy Eel is active, you'll replace your Spicy Eel buff. Cheese heals you without canceling it.

The Jade Trick That Changes Everything

If you hate mining for stone, you'll love this. Throw Jade into Crystalariums. Then, every Sunday, the Desert Trader trades 1 Jade for 1 Staircase.

This is one of the best Stardew Valley mining tips for level 100 because it lets you build a huge staircase supply without grinding out thousands of stone. Don't have Crystalariums yet? Make them a priority. Even two or three running Jade for a few weeks will give you plenty of staircases.

Step-By-Step Guide To Floor 100

Here's the exact sequence I use for a successful floor 100 run.

Step 1: Go On A Lucky Day

Check the TV every morning. If the fortune teller says spirits are generally positive or very happy, that's your window.

A bad luck day makes ladders and holes appear less often. Don't waste your bombs and food on those days.

Step 2: Pack Your Bag The Night Before

Load your inventory before you go to sleep so you can start immediately after waking up. You need your weapon, bombs, staircases, food, and healing items.

Don't forget a gold or iridium pickaxe. You'll still break a few rocks here and there.

Step 3: Get To The Skull Cavern Early

The bus to the desert leaves at 10 AM. If you have a Desert Warp Totem, use it at 6 AM for a much earlier start.

Either way, don't waste time on other chores that day. Once you're at the entrance, eat your Spicy Eel and drink your Coffee before going inside. Buffs last for a while, and every minute counts.

Step 4: Bomb Large Clusters Of Rocks

When you enter a floor, look for large clumps of rocks. Drop a bomb in the middle of the cluster and back away.

The explosion will break multiple rocks at once, revealing ladders and holes quickly. If a bomb reveals a ladder or a hole, take it immediately. Don't stop to pick up every piece of stone or ore unless it's right next to you.

New player warning: Don't stand next to a Mega Bomb when it's about to explode. I've knocked myself out doing that, and it ends the run faster than any serpent.

Step 5: Use Staircases On Bad Floors

Some floors have only a few rocks spread way apart. Bombing them is a waste of time. Some floors are packed with serpents and slimes, and fighting through them is even worse.

Those floors are perfect for staircases. Just place one and go down. It costs one staircase, but it saves minutes. Also, use a staircase immediately if you see a spiral-shaped floor layout or a floor with a huge empty middle area.

Step 6: Jump Into Holes When You Can

Holes are the best time-savers in the Skull Cavern. A hole can drop you 3 to 15 floors, which is way faster than finding a ladder every single floor.

Holes do damage when you jump in, so make sure your health is high. If you're low, eat cheese first. Then jump. Skipping five floors at once is one of the best feelings in the whole game.

New player warning: Don't jump into a hole when your health is low, no matter how tempting it is. Heal first, then jump. Otherwise, you might pass out somewhere deep and waste the run.

Step 7: Stop Using Holes Near Floor 90

This is one of the sneakiest Stardew Valley mining tips for level 100: stop using holes when you get close to floor 100.

If a hole drops you from floor 96 to floor 103, you'll skip right past Mr. Qi and miss the event. Once you're around floor 90, switch back to regular ladders and staircases so you land exactly on floor 100.

Step 8: Staircase The Final Floors

Around floor 90 or 95, start using staircases exclusively. At that point, you just want to land on floor 100 before 2 AM.

Don't risk getting killed or stuck on a huge floor with no easy exit. Place staircases, take the ladder, and finish the run. When you step onto floor 100, the Mr. Qi cutscene will trigger if you've read Secret Note #10. Enjoy the reward—you earned it.

Common Mistakes That Kill A Floor 100 Run

Even with the right plan, small mistakes can ruin your run. Here are the worst ones and how to avoid them.

Going On A Bad Luck Day

A "spirits are very displeased" day is not the day to attempt floor 100. Ladders and holes will show up less often, and you'll burn through bombs and staircases faster. Just wait for a better day.

Fighting Every Serpent

Serpents are fast, annoying, and dangerous. I used to stop and kill every one I saw, and it tanked my runs.

You don't need to kill them. Dodge, bomb, and go deeper. Only fight if something is blocking your path.

Running Out Of Staircases Too Early

A lot of players save staircases "for later," then run out around floor 70 and panic. Bring more than you think you need.

There's no penalty for using too many. A staircase skipped is a floor completed.

Ignoring Holes Because Of The Damage

Holes look scary and cost health, but they're the fastest way down. Always jump into holes when your health is above half.

If you're worried, heal first. Then jump.

Eating The Wrong Food During The Run

If you eat something with a buff, like a root platter or fish taco, it replaces your Spicy Eel effect. That kills your luck and speed boosts.

New player warning: Stick to healing foods with no buffs, like cheese, so you keep Spicy Eel active all run long. Don't accidentally overwrite it with a fish taco.

FAQ: Skull Cavern Floor 100

Do I need Secret Note #10 to trigger the floor 100 event?

Yes. If you haven't read Secret Note #10, Mr. Qi won't appear when you reach floor 100. Read the note first, then start your run.

Is it better to use bombs or staircases?

Use both, honestly. Bombs are faster on good floors with lots of rocks. Staircases are better for small floors, dangerous floors, and the final stretch near floor 100. A balanced approach is the most reliable way to get there.

Should I choose Iridium Snake Milk or the 10,000g reward?

Take the Iridium Snake Milk. A permanent +25 max health is way more valuable than 10,000g because it stays with you for the rest of the game. You'll always have more chances to earn gold later.

How do I get enough staircases without mining thousands of stone?

Set up Crystalariums to duplicate Jade, then trade it to the Desert Trader on Sundays. One Jade gets you one Staircase. That's by far the easiest way to build a huge staircase stash.

Reaching floor 100 in the Skull Cavern takes patience, planning, and a little luck. But with the right bombs, staircases, and food buffs, you can absolutely do it. Follow these Stardew Valley mining tips for level 100, stay calm when serpents swoop in, and remember: the fastest way down is the smartest way down.