Clock Tower Unknown Basement (Lv 240+)

The endgame farming floor beneath Aldebaran's Clock Tower. Everything here runs on one currency — Clock Tower Lead — which you turn into your own Solid / Wicked / Precision weapon and then enchant to the top tier. This page walks the whole chain.

Quick route: Warper → Dungeons → Clock Tower → Unknown Basement. The merchant you will keep coming back to is the Mysterious Box at c_tower1 243,202 (Clock Tower 1st floor, not inside the basement).

Getting in

Talk to the Mysterious Box and it wakes up as The Devil in the Box. It handles every exchange on this page. There is also a Giant Clockwork at c_tower1 246,197 and wandering Pet Mimics inside clock_01.

The Devil is a trickster by design: when you pick a shop there is a 1-in-3 chance it opens a different one instead. That is intended behaviour, not a bug — just talk to it again.

Step 1 — Farm Clock Tower Lead

Six monsters roam clock_01 — Goblin King, Extra Joker, Erzsebet, Jeniffer, General Orc and Sieglouse — and they all share the same drop table:

Lead is the base currency for everything below, so expect to spend most of your time here. Note two shortcuts most players miss:

• Gear drops directly — you do not have to trade 15 Lead for every single one.
• Finished weapons drop here too. Every one of the 26 Solid / Wicked / Precision weapons can drop straight off these monsters at 0.3%. Crafting (Step 3) is the reliable route because you choose exactly which weapon you get, but if the right one drops you can skip straight to enchanting.

Step 2 — Lead into Gear and Regulator

At the Devil in the Box:

Clock Tower Gear is the mid-tier currency — weapons and enchants both eat it in bulk. Spring Regulator is the key that opens the enchant window (see step 4). You only ever need one — it is not consumed when you use it, so craft it once and keep it forever. The enchant materials are the recurring cost.

Step 3 — Craft your weapon

Three weapon lines, one price for all of them:

125x Clock Tower Lead + 10x Clock Tower Gear + your Fourth-class weapon

You can skip this step entirely if the weapon you want drops in the basement (0.3%, see Step 1) — crafting is simply the route that guarantees the exact weapon. Pick the line that matches your class; the base weapon you hand in decides what you get:

Where the base weapons drop

Fortified / Relapse / Scrap weapons are not Clock Tower drops — farm them here first:

Each weapon type rolls separately, so the first floors (1.5%) are far faster to farm than the second ones — go to amicitia1 and nif_dun01 unless you specifically need a type that only the deeper floor carries.

Step 4 — Enchant it

Use your Spring Regulator on the weapon to open the enchant window (it stays in your bag — one is enough for life). All 26 Solid / Wicked / Precision weapons are valid targets. There are two slots and they behave very differently.

Both slots scale with Enchant Grade. Every enchant below gets stronger as the weapon's grade goes D -> C -> B -> A. Grade the weapon and the same enchant roughly doubles in value. See Grade Enhancement.

Made a mistake? A reset costs 50,000 Zeny + 10 Clock Tower Lead and always works.

Slot 3 — stat enchants

All 13 options — the second number is what you get at Grade A:

Slot 2 — class skill enchants

Cost: 150 Clock Tower Gear + 150 Shadowdecon + 150 Zelunium. No Zeny, no gambling — you pick the one you want.

All 40 options. "Base" is at no grade, "Max" is at Grade A (several also add size or race bonuses at Grade C and above):

These enchants never appear in your bag. They live inside the weapon's slot. If you are searching your inventory for a "Tuning Device", that is why you cannot find one.

What it really costs

Slot 2 is the single biggest expense in the whole chain:

• 150 Clock Tower Gear = 2,250 Clock Tower Lead
• 150 Shadowdecon + 150 Zelunium — these are not Clock Tower drops. They come from high-level content elsewhere; Varmundt's Biosphere fields are a good source.

Tips

• Everything funnels through Lead — when in doubt, farm clock_01.
• Do the weapon first, the Slot 2 enchant last: it is the single biggest expense.
• The Slot 3 random roll is cheap. If you are happy with any decent stat, roll it instead of paying 1,500 Lead for a guaranteed pick.
• Shadowdecon and Zelunium are not Clock Tower drops — stock them up while doing endgame content elsewhere.
• Grade the weapon before you spend on Slot 2. Every enchant here scales with grade, so a Grade A weapon gets roughly double the value out of the exact same 150 Gear + 150 Shadowdecon + 150 Zelunium.

See Also

• Grade Enhancement — grading multiplies every enchant on this page.
• Varmundt's Biosphere — where Shadowdecon and Zelunium come from in bulk.
• Prontera Service Hub for the Warper.