Ultimate Sword in +1 Forge Blade Loot

Quick answer: there is no item, recipe or quest called "Ultimate Sword" to claim. It is the game's advertised long-term goal — the closing line of the official description, "👑 Forge the Ultimate Sword!" — so treat it as an ambition you measure with on-screen sword stats and move toward with a repeatable forge loop, not a named drop to hunt.

What "ultimate sword" actually means

The official listing by 6B Games Factory ends its feature list with that crown bullet, right after Click to Train to Gain Power, Shape & Forge Your Own Sword, Slay Monsters for Rare Loots and Unlock Powerful Skills & Traits. The line survived all five tracked name/description revisions between September 16, 2026 and the final "+1 Forge Blade Loot" rename, and stat-site mirrors repeat it word for word — so it is stable advertised wording, not a limited-time promo.

Nothing in the game's public materials or guides presents an "Ultimate Sword" inventory item, recipe, menu entry or quest. Coverage describes it the way players actually experience it: a power potion "shortens the gap between the blade you have and the ultimate sword you are trying to forge." The practical takeaway: judge every forge result by what the screen shows, keep looping, and recheck after updates in case a literal item is ever added.

How to judge whether a sword got stronger

The result screen and weapons menu expose everything you need. In one session, a player compared swords purely by the power number — an equipped 18,000-power mythical over a 17,000 alternative and a weaker 12,000 remake — and later sessions ran into the millions and billions, but the habit is the same.

You also control the inputs. Each ore lists its own effect on screen — "Increases my power by 7,000", "Improves weapon quality", "Improves weapon stats", extra rune slots, extra attributes (a Fishman scale adds power and unlocks traits; three dragon scales gave +4,000 attack power and two extra attributes in one run) — and the material list can be sorted by rarity or by multiplier. Ores carry luck multipliers too: Diamond +2,000, Void +4,000, Mystic-tier ores up to 7,000, and Special-tier ore observed at 14,000–30,000. The forge screen shows shape percentages that shift as you add ore — see the sword shaping guide for that mechanic. All of these values come from single-session gameplay, so treat them as examples, not constants.

The loop that moves you toward it

One pass is never the end; each cycle can beat your previous best:

1. Train power. Clicking to train is described as the only way to gain power, and Power Potions help. Power both feeds the forge and gates monster stages — one session's entry gates were 80 million for stage 11, 600 million for 12, 5 billion for 13, 200 trillion for 17 and 2,000 trillion for 18. Good skill timing and dodging let you fight above your raw power, as that player did at stage 18. The click training guide covers the basics.
2. Farm the deepest stage you can clear. Deeper stages yield higher-multiplier ore, and materials do not pick up automatically — carry the drops back to the forge yourself. The monster drops page details what enemies leave behind.
3. Forge with your best ores. Sort by multiplier, load the best mix and add more ore to raise the total: removing one weak ore visibly dropped a total multiplier to 4,800, and mixing weak ore with good "drags the multiplier somewhere in the middle." Shape odds climb slowly — six to seven copies of one rare ore only moved a shape chance to about 22–25%, and no ore count reached a 100% confirmation in that session. A higher material tier raises your ceiling but guarantees nothing: one forge made with legendary material came out worse than the player's existing sword.
4. Equip matching attack runes. A +50% attack rune lifted a 210-million-damage sword to 295 million, and the same sword's per-slash income rose from about 8 trillion to 12 trillion. A mismatched epic 30% damage rune changed nothing on another sword — as the player put it, "you have to choose your runes well."
5. Recycle the progress. Sell swords you don't use (one sold for 20 billion), put money into permanent upgrades — Power maxes at 200% and was the cheapest to max, with Luck and Speed alongside — and rebirth at each level gate (observed at 300, 325, 350, 375 and a final gate at 400) for power and money multipliers; rebirth 12 added a power multiplier and a ×7 money multiplier in that session.

That repeating gap — between the blade you have and the one you are trying to forge — is what "forging the ultimate sword" means in practice. For the click-by-click process itself, the sword forging guide walks through the basic forge, and the swords reference collects observed sword outcomes.

Is there a confirmed best sword or a cap?

No source confirms a final item or recipe that ends sword progression, and no permanent cap is confirmed either. What one long session observed:

• Level stopped rising at 400, and the player completed a 16th rebirth the game announced as "Max Rebirth complete"; a 64-Robux product bought hoping for rebirth 17 granted only a boost. That is one uncorroborated session — updates can move these boundaries, so don't plan around them as permanent.
• His best-sword judgment kept shifting within the same session: a Challenge-tier Sharp Katana (193 million damage, 65-billion price) was "definitely not the best sword yet"; the sword he believed was best — something resembling the "Grimoire Source" (captions also render it "GR Source") — never dropped; and his last forge, a Special-tier sword with 210 million damage, was only "the best sword now."
• Two remaining GR Source forge slots stayed locked; adding ore did not open them, and his guess that a paid boost is required was never verified either way.
• Endgame content looked open-ended: he expected "more than 19 stages," and a 15-floor tower's final-stage recommendation — 6 million quintrillion damage or power — sat far beyond that session's numbers, leaving its rewards unobserved.

Treat every "best sword so far" as temporary, keep running the loop, and check the updates page after patches for changes to tiers, caps or endgame rewards.