- Abyssus Ancient Forge reshapes weapons and abilities, so match mods to your main damage pattern first.
- Unlock cost is simple: buy the Ancient Forge upgrade from the Soul Wheel for 2 Soul Fragments.
- Weapon mods usually reward heat, uptime, weakspot play, or distance traveled.
- Ability mods tend to favor cooldown loops, blessing scaling, and control effects.
- Best results come from building around one clear tempo: sustain, burst, precision, or zone control.
Abyssus Ancient Forge Basics
The Abyssus Ancient Forge is the game’s modification hub for weapons and abilities. Use it when you want to turn a good loadout into a focused build instead of spreading power across too many unrelated bonuses.
Sustain Builds
- Engine Rifle
- Tesla Gun
- Brine Revolver
- Best when you can keep pressure on targets
Burst Builds
- Shotgun
- Plasma Launcher
- Frag Grenade
- Best when you want front-loaded damage and fast clears
Control Builds
- Turret
- Brine Field
- Smiting Spear
- Best when you want space control, slows, or repeated damage ticks
Pick one mod that improves uptime, one that increases damage, and one that reinforces your preferred range. That keeps the forge choices coherent.
How to Unlock the Ancient Forge
Unlocking the forge is straightforward, but it is easy to overlook the exact requirement if you are spending Soul Fragments elsewhere. The upgrade becomes available once you buy the Ancient Forge unlock from the Soul Wheel.
| Step | Action | Result |
|---|---|---|
| 1 | Open the Soul Wheel | Find the upgrade path tied to the Ancient Forge |
| 2 | Spend 2 Soul Fragments | Purchase the unlock |
| 3 | Return to the forge | Access weapon and ability modifications |
| 4 | Verify availability | Check that the mod list is open for your build planning |
Buy the Upgrade
Purchase the Ancient Forge upgrade from the Soul Wheel. The cost is 2 Soul Fragments.
Return to the Structure
Go back to the Ancient Forge and inspect the weapon and ability modification pools.
Plan Around Your Core Damage
Decide whether your build leans on sustained fire, weakspots, status effects, or cooldown-driven abilities.
Lock in Priority Mods
Choose modifiers that amplify the way you already fight instead of adding unrelated bonuses.
A known display bug may hide the Logbook entry after you obtain the upgrade. If that happens, check the forge directly and confirm the unlock state in play.
For the base entry and the full mod database, see the Ancient Forge wiki page.
Best Weapon Mod Priorities
Weapon mods in the forge are strongest when they reinforce the weapon’s natural rhythm. Heat weapons want heat scaling, weakspot weapons want precision bonuses, and explosive weapons want radius or bounce upgrades.
| Weapon | Strong Mod Direction | Best Use |
|---|---|---|
| Engine Rifle | Heat scaling, sustained fire, overheat payoff | Long fights, ramping damage, pressure play |
| Shotgun | Momentum, weakspot damage, burst conversion | Close-range clearing, elite deletes |
| Tesla Gun | Faster charging, secondary synergy, range scaling | Hybrid damage and multi-target pressure |
| Plasma Launcher | Radius growth, bounce, splash chaining | Crowd control and area denial |
| Combat Bow | Weakspot scaling, charge speed, distance bonuses | Precision damage and safe range |
| Disc Thrower | Bounce value, travel distance, extra discs | Mobile damage and angled shots |
| Brine Revolver | Reload bonuses, crit recovery, weakspot scaling | Rhythm shooting and ammo efficiency |
| Fish Deity | Stun, bounce value, secondary damage synergy | Control-heavy burst setups |
| Harpoon Gun | Combo economy, extra harpoons, blessing synergy | Skill-based damage and scaling builds |
If a weapon already rewards staying on target, choose mods that extend that streak instead of resetting it. That is especially strong on heat, weakspot, and distance-based weapons.
A few patterns stand out across the pool:
- Heat-based weapons like the Engine Rifle gain value from longer firing windows and better overheat control.
- Shotguns and revolvers benefit from reload timing, weakspot hits, and burst windows.
- Projectile weapons usually want bounce, distance, or explosion scaling.
- Precision weapons are strongest when the forge improves charge speed and weakspot payoff.
Best Ability Mod Priorities
Ability mods are where the forge starts to shape your entire combat loop. Some options improve raw damage, while others lower cooldowns or make your ability stronger against dense enemy groups.
| Global Mod | Effect | Best When |
|---|---|---|
| Extra Pockets | Gain 3 ability stacks | You want more ability uses or bigger stack setups |
| Increased Efficiency | Kills reduce your ability cooldown | You fight large groups often |
| Rich Get Richer | Cooldown drops by 10% per ability stack | You stack ability charges consistently |
| Investment | Ability damage rises per god blessing on the ability | Your build already stacks blessings |
| Double Trouble | Blessings have a chance to trigger twice | You rely on high-value blessing effects |
| Ability | Best Mod Picks | Playstyle |
|---|---|---|
| Ancient Core | Hunter's Mark, Laser Sight, Trigger Happy | Ranged burst, mark-based damage, cooldown timing |
| Anchor | Bulwark, Geyser, Self-sustaining | Melee control, tankier swings, repeated hits |
| Brine Field | Personal Space, Safety Dance, Time Warp | Zone control, damage amplification, slowdown play |
| Turret | Sniper Mode, Persistent, Teamwork | Set-and-forget DPS, team scaling, high uptime |
| Frag Grenade | Implosive Force, Sharp Shell, Cluster Bomb | Burst damage, grouping, explosive follow-up |
| Smiting Spear | Spear Grid, Split Spear, Enduring Spear | Multi-hit pressure, field control, chained value |
If your build already uses blessings or ability stacks, prioritize forge mods that multiply that investment. Flat power is good, but scaling usually carries harder into longer fights.
A practical way to think about ability mods:
- Cooldown reduction works best when you can keep killing or stacking.
- Damage amplification is strongest when your ability already lands reliably.
- Control effects are ideal when your build needs room to breathe.
- Stack-based effects reward players who plan several casts ahead.
Picking the Right Forge Path for Your Build
The safest way to use the forge is to commit to one combat identity. Mixed builds can work, but they usually need more gear support before they feel smooth.
Priority Checklist:
- Choose one main damage pattern: sustain, burst, precision, or control
- Match weapon mods to the way you already attack
- Use ability mods that reduce downtime or increase your best control tool
- Avoid splitting resources across unrelated scaling paths
- Revisit your forge choices after upgrading a weapon or changing your core ability
| Build Style | Best Forge Focus | Why It Works |
|---|---|---|
| Sustain | Heat, ammo recovery, cooldown loops | Keeps pressure high during extended fights |
| Burst | Damage spikes, explosion power, reload timing | Delivers fast kills before enemies can react |
| Precision | Weakspot bonuses, charge speed, distance scaling | Rewards aim and safe positioning |
| Control | Slow, stun, knockback, zone effects | Creates space and improves survivability |
Start with uptime, then add damage, then add control. That sequence usually gives the smoothest early power spike without making the build awkward to pilot.
When in doubt, compare your strongest weapon to your strongest ability and let the forge reinforce whichever one already wins fights. That is usually more efficient than forcing a hybrid that only looks flexible on paper.
FAQ
These answers focus on the most common Ancient Forge decisions: unlock timing, first priorities, and how to match mods to a build.
Q: How do I unlock the Abyssus Ancient Forge?
Buy the Ancient Forge upgrade from the Soul Wheel for 2 Soul Fragments, then return to the forge to access the modification system.
Q: Which mod type should I prioritize first?
Start with the category that matches your main damage source. Weapon-heavy builds should tune weapons first, while cooldown-driven setups should focus on ability mods.
Q: What weapons benefit most from the forge?
Heat weapons, weakspot weapons, and projectile weapons usually gain the most because the forge can amplify their natural rhythm instead of replacing it.
Q: Is the Logbook always reliable after unlock?
Not always. A known display bug can keep the entry from appearing even after you obtain the upgrade, so verify the forge directly.