Sailor Piece's Massive Update introduced Tower Island, the Infinite Tower game mode, and a new weapon that pays homage to Acheron from Honkai: Star Rail. The Abyssal Empress is a replica of Acheron's sword, and it's quickly become one of the most sought-after blades in the game. There are two ways to add it to your inventory: grinding Tower Tokens or spending Robux.
Quick answer: Purchase the Abyssal Empress from the Tower Shop on Tower Island for 4,000 Tower Tokens, or buy it directly from the Robux Shop for 1,399 Robux.
Buying the Abyssal Empress from the Tower Shop
Step 1: Open any Teleport Portal and select Tower Island. It appears as the last island on the teleport list and was added alongside the Massive Update.
Step 2: From the spawn point, walk straight toward the tower. The Tower Shop NPC stands on the right side of the entrance. Interact with the NPC to open the shop interface.
Step 3: The Abyssal Empress Sword is listed at the top of the Tower Shop inventory. It has infinite stock, so there's no rush — you can buy it whenever you've saved enough tokens. Confirm the purchase for 4,000 Tower Tokens, and the sword will appear in your inventory immediately.
Earning Tower Tokens in the Infinite Tower
Tower Tokens are the exclusive currency for the Tower Shop, and the only way to earn them is by clearing floors inside the Infinite Tower. You'll find the Infinite Tower NPC on Tower Island — talk to them to open the portal and start a run.
Before you can enter, two requirements must be met:
| Requirement | Details |
|---|---|
| Minimum Level | 8,500+ |
| Tower Keys | At least one key per portal summon |
Tower Keys drop at a high rate from NPC mobs, mini-bosses, and World Bosses throughout Sailor Piece, so you'll likely accumulate a decent stack just from regular gameplay. Each key lets you summon the Infinite Tower Portal once.
Farming Tower Tokens efficiently
Collecting 4,000 Tower Tokens takes real time, but a few approaches speed things up considerably. Forming a team and pushing through as many floors as possible in a single run yields far more tokens per key than repeatedly soloing early floors. Every key you save is another full run later.
For players who prefer a hands-off approach, Sailor Piece supports AFK farming inside the tower. Enable Auto Skill and Auto Haki in your settings, then make sure you've equipped your strongest Sword, Spec, Accessories, Artifacts, and Runes before entering. A well-geared character can clear floors passively while you step away.
Related Tower Shop rewards
The Abyssal Empress isn't the only notable item locked behind Tower Tokens. Two other rewards from the Tower Island ecosystem are worth knowing about if you're already farming.
| Item | How to Get | Stats / Effect |
|---|---|---|
| Abyssal Outfit | Tower Shop for 4,000 Tower Tokens or floor-clear drop | +80% Damage, +105% Defense, +15% Damage Reduction (at E0) |
| Void Empress Title | Rare drop from clearing Infinite Tower floors | +77.5% Damage when equipped |
The Abyssal Outfit can also drop as a reward while clearing floors, giving you a chance to save your tokens for the sword instead. The Void Empress Title, on the other hand, has a very low drop rate and can't be purchased — it only comes from floor completions.
Between the Tower Token grind and the Robux shortcut, getting the Abyssal Empress comes down to whether you'd rather invest time or money. Either way, the sword is permanently available with infinite stock in the Tower Shop, so there's no limited-time pressure. Hit Level 8,500, stock up on Tower Keys, and start climbing.