How to Craft the Best Katana in The Forge (OneTap Build)

The katana has earned a reputation as the strongest weapon in The Forge when crafted with the right recipe. With the correct ore combination, enhancements, runes, and racial bonuses, this build can reach a point where it one-taps almost every enemy in the game. This guide walks you through the full process step-by-step, from material farming to final optimization, so you can create the top-tier katana reliably.

Required Ores for the Best Katana

The core of the recipe revolves around three rare volcanic ores:

• Darkrite
• Demonite
• Demon Eye (Mythical)

All three drop from volcanic rocks deep in the volcanic zone. Demon Eye is particularly rare, so expect to spend some time mining.

This recipe uses a specific ratio that maximizes weapon potential:

• 6 Darkrite
• 4 Demonite
• 3 Demon Eye

This combination produces the current strongest katana in the game with:

• 100 base damage
• 10% bonus physical damage passive

The passive alone gives it a meaningful edge, especially once combined with race bonuses and runes.

How to Boost Your Damage Even Further

The katana’s strength doesn’t end with the recipe. To reach true one-tap potential, you must stack additive multipliers through achievements, race selection, runes, and upgrades.

Critical Chance Achievement Boost

Inside the Achievements menu exists a powerful bonus: Critical Chance.
By forging a large number of items, you can unlock up to 35% crit chance, multiplying your burst damage opportunities. Critical strikes heavily amplify the katana’s raw physical scaling.

Best Race for Katana Damage – Demon

The Demon race is essential for maximizing the katana’s potential. It grants:

• +20% physical damage
• +20% fire damage
• Additional passive boosts ideal for PvE damage output

When combined with the katana’s own 10% damage passive, you start with a free 30% physical damage increase, before upgrades and runes are even applied.

This bonus alone pushes the katana into one-tap territory once everything else is layered.

Best Runes for the Katana

Two runes dramatically enhance its performance:

• Blast Chip – Increases explosive on-hit damage and boosts burst potential
• Drain Edge – Grants life steal and additional utility, allowing aggressive play without downtime

These runes should always be placed directly on your katana. Together, they form the foundation of the endgame build.

Enhancing Your Katana

At the Enhancer NPC, upgrade your katana as much as your materials allow.
Each enhancement increases damage scaling and reinforces the weapon’s passives.
A fully maxed katana with the correct recipe and runes significantly surpasses any non-optimized weapon in the game.

How to Farm the Required Ores Faster

Since Demon Eye and Darkrite can be difficult to obtain consistently, maximizing your mining efficiency becomes vital.

Here are the best methods:

1. Increase Your Luck Stat
Your achievements offer a 40% luck boost once you reach enough playtime. Always activate this while farming.

2. Use the Arcane Pickaxe
This pickaxe already includes its own luck modifier, making rare ore drops more common.

3. Add Luck or Yield Runes to Your Pickaxe
You can slot multiple runes that improve your ore yield and mining luck.
The goal is to get more volcanic drops per rock destroyed, which accelerates your Demon Eye and Darkrite farming considerably.

4. Play as the Dwarf Race (Mining Build)
If you’re purely farming ore and not fighting, switching to Dwarf gives you better mining power and faster volcanic rock clearing.

Where to Farm

Focus exclusively on Volcanic Rocks in the volcanic depths.
These rocks can drop:

• Demonite
• Darkrite
• Demon Eye

This is the only reliable location for all required materials.

Alternative Katana Recipes

If you cannot obtain the perfect ore combination yet, there are multiple mid-game and late-game katana recipes that follow a similar structure. They won’t outperform the top build, but they will still deliver strong damage and help you advance faster.

The video lists all variations, but the important note is this:

• Use volcanic ores
• Maintain a balance of Darkrite and Demonite
• Add Demon Eye whenever possible

Each variation scales differently, but all follow the same philosophy of maximizing physical burst damage.

Why This Katana One-Taps

Once you stack:

• 100 base damage
• 30%+ bonus physical damage
• Blast Chip’s burst
• Demon race passive effects
• High crit chance
• Full enhancement levels
• Weapon passives and rune synergy

…you reach damage levels that surpass every other weapon class in the current meta. This is why the katana is considered the strongest weapon in The Forge at the moment.

With the recipe, races, runes, and upgrades aligned, the katana becomes a true endgame weapon capable of deleting enemies instantly. While gathering the materials takes effort, the payoff is unmatched. Once completed, this build allows you to one-tap the strongest mobs, including Reapers, Deathx Skeletons, and other high-level threats.