How do you unlock the Sharp Weapon?

The article explains that you must find and destroy four hidden red crystals in the boss room of Act 2, Stage 4 to unlock a door containing the weapon.

What is the Sharp Weapon?

The article reveals that the 'Sharp Weapon' is the Disc Thrower, a powerful weapon that is not part of the standard progression.

Where are the crystals located?

The article provides the following locations: one in a grating to the left of the door, one in a grating on the right side of a pond, a third in a vertical grating near the top of the room, and the final one in the upper-right grating in front of the locked door.

Abyssus: Soul Wheel Guide

Abyssus

The Soul Wheel in Abyssus is one of the most important progression systems. Found in the lobby, it lets you spend Soul Fragments on permanent upgrades that carry over between runs. Mastering the Soul Wheel is key to making future expeditions easier and unlocking new mechanics.

How Soul Fragments Work

Soul Fragments are the main currency for the Soul Wheel. You can earn them by:

Defeating Elites
Defeating Bosses
Opening chests

Fragments are also used as an extra reroll currency in Blessing Altars and the Ancient Forge, making them valuable beyond just upgrades.

Soul Wheel Progression

The Soul Wheel is divided into seven levels of upgrades. Each level requires spending enough fragments in previous tiers before unlocking the next. Costs increase with each level, but the effects also scale up in power.

Soul Wheel Upgrade List

Level 1 Upgrades

Enhanced Weapons: +3% Weapon damage (limit 5, cost 1 SF each)
Upgraded Inventions: +4% Ability damage (limit 5, cost 1 SF each)
Bountiful Bottles: +1 Syringe charge (limit 1, cost 1 SF)
Picky Worship: Reroll categories at Blessing Altars (limit 3, cost 1 SF each)
Bartering: Reroll Merchant options for Gold (limit 1, cost 1 SF)

Level 2 Upgrades

Abyssal Stamina: +40 Max Health (limit 5, cost 2 SF each)
Ability Abundance: +1 Ability charge (limit 1, cost 2 SF)
Temple’s Rest: Healing Shrine in Abandoned Temple (limit 1, cost 2 SF)
Starting Funds: Start with 1 Key and 50 Gold (limit 2, cost 2 SF each)
Ancient Forge: Weapon or ability Forge appears in expeditions (limit 1, cost 2 SF)

Level 3 Upgrades

Keen Vision: +2% Weakspot damage (limit 5, cost 3 SF each)
Magazine Madness: +3% Reload speed (limit 5, cost 3 SF each)
Garden’s Rest: Healing Shrine in Gardens (limit 1, cost 3 SF)
Ascended Blessings: Upgrade Altars appear in expeditions (limit 1, cost 3 SF)
Gambler: Wishing Wells and Sacrifice Altars appear in expeditions (limit 1, cost 3 SF)

Level 4 Upgrades

Ability Abundance II: +1 Ability charge (limit 1, cost 5 SF)
Bountiful Bottles II: +1 Syringe charge (limit 1, cost 5 SF)
Abundance: Extra Merchant options (limit 3, cost 5 SF each)

Level 5 Upgrades

Rapid Fire: +3% Weapon fire rate (limit 5, cost 8 SF each)
Second Wind: Once per expedition, revive with 20% Health (limit 5, cost 8 SF each)
Sanctuary’s Rest: Healing Shrine in Sanctuary (limit 1, cost 8 SF)
Beginner’s Charm: First room grants random Charm (limit 1, cost 8 SF)
Timely Reward: Extra loot for completing areas quickly (limit 1, cost 8 SF)

Level 6 Upgrades

Execution: Melee hits execute enemies below 20% HP (limit 1, cost 10 SF)
Finer Charms: Higher chance for rare Charms (limit 1, cost 10 SF)
Picky Worship II: Spend Soul Fragments to reroll categories (limit 1, cost 10 SF)

Level 7 Upgrade

Charm Power: Equip a second Charm (limit 1, cost 20 SF)

Strategy and Tips

Focus early fragments on damage or health upgrades to stabilize your runs.
Unlock reroll and merchant options if you prefer build flexibility.
Healing Shrine unlocks make longer expeditions safer.
Later levels like Execution and Charm Power significantly boost power and survivability, so plan to push toward them once your core stats are covered.

Final Blurb

The Soul Wheel in Abyssus is the backbone of long-term progression. Spending Soul Fragments on permanent upgrades unlocks stronger stats, new mechanics, and safety nets that make every expedition easier. Prioritize core survivability first, then work toward utility and high-cost power boosts to fully unlock your potential.

FAQ

What are Soul Fragments used for?

They are spent on Soul Wheel upgrades and as reroll currency in Blessing Altars and the Ancient Forge.

How do you get Soul Fragments?

By defeating Elites, defeating Bosses, and opening chests.

What is the best early Soul Wheel upgrade?

Abyssal Stamina and Enhanced Weapons are strong early choices for stability.

What’s the most powerful upgrade?

Charm Power at Level 7, since it lets you equip a second Charm, drastically boosting builds.

Do Soul Wheel upgrades carry over between runs?

Yes, they are permanent account-wide progression.