The real Simulacrum Prime.

Run the fight. Don't estimate it.

Builder, simulator, optimizer.

Every formula cites its source, and every golden test is calibrated against a real in-game run. Why you can check it

Warframes

Operator

Companions

Weapons

Athodai Prime

Measured buildsthe board's best riven-free build for each ruler, and what this weapon's number does not account for

Best riven-free build on the WFSim board, as of 2026-09-25
Ruler	Fight	Mode	Score	Build
Standard Single Target	Thrax Centurion Lv 9999 SP · 180 s · KPM	alternate	20.7479	Ice Storm, Pistol Pestilence, Galvanized Diffusion, Primed Target Cracker, Galvanized Shot, Lethal Torrent, Creeping Bullseye, Magnetic Might, Pistol Ammo Mutation, Secondary Merciless
Standard Multi Target	19x19 at 3 m · Thrax Centurion Lv 9999 SP · 180 s · KPM	alternate	93.2173	Ice Storm, Pistol Pestilence, Galvanized Diffusion, Primed Target Cracker, Galvanized Shot, Lethal Torrent, Creeping Bullseye, Magnetic Might, Pistol Ammo Mutation, Secondary Merciless
Demolisher	one target · Demolisher Devourer Lv 9999 SP · 4-player health · 180 s · KPM	alternate	2.3514	Frostbite, Pistol Pestilence, Primed Heated Charge, Pistol Acuity, Hornet Strike, Primed Target Cracker, Anemic Agility, Magnetic Might, Secondary Deadhead

Not modelled here

'Overdrive': a weak-point KILL grants +100% fire rate, +100% ammo efficiency and -100% recoil for 8 seconds, and it disables Alternate Fire while it lasts (wiki). It is a kill-triggered buff this engine has no shape for, so this entry fires at its listed rate throughout

Benchmark

Forma plan your rules, and the builds that share these polarities

Wielder

Mode

Mods

0 / 0 0 Forma

Stance

A stance decides what the weapon actually swings: it publishes a combo per mode, and installing one replaces the weapon's own. It also GRANTS capacity instead of costing it — 10 on a slot of its own polarity, 5 on a bare one, 4 on the wrong colour.

Exilus

A polarity can be swapped between this slot and a main one — the slot stays Exilus. So its polarity counts toward any build, even one that leaves it empty.

Arcane

Evolution

Incarnon Genesis

Stats

≡

Build

▶

Sim

1 · The fight who you are shooting at, where, and for how long

2 · External bonuses what the wielder is doing, and what others hand them — a ticked number replaces the wielder's own

3 · Limits what this run is allowed to assume

4 · Buffs the stacks the run STARTS with — the fight still grants and decays them on their own triggers

5 · Extra stats anything this weapon is handed from outside its build — it lands in the same bucket a mod would

6 · Warframe buffs abilities cast on this weapon — set your Ability Strength and the values follow

7 · Measure what to read off the run — the scenario's own term, so an official ruler pins it

The whole fight — every field, including the ones this weapon hides

Shapley analysis

what each part multiplies the result by

Rivens

All rivens every riven you have made for this weapon, with what it actually rolls

Enemies

All targets every enemy you have made — pick one in the simulator's target list like any other

⚙

The search

the starts and the limits — what a search preset saves, with the runs per candidate

① Starts

② Limits none by default — click an option to exclude it; a start that pins an excluded option cannot run, one that only holds it has it replaced

▶

The fight

the simulator's — every candidate is scored under it, and it is edited over there

★

Optimize

each start improved by the quick calc until nothing helps

Runs per candidate

—

Forma plan your rules, and the builds that share these polarities

Mods

0 / 0 0 Forma

Aura

An aura hands capacity back instead of costing it: twice its drain on its own polarity, 80% of it rounded down on another. A polarity moves between all ten slots, the aura's included.

Exilus

Arcanes

Archon Shards

Operator

Stats

Abilities

—

Mods

0 / 0 0 Forma

Nothing a companion seats moves a weapon's numbers yet: no robotic weapon reads its wielder's stats, and no precept is run. What this answers is capacity and Forma.

Operator

Only the active school's nodes apply. A node that needs an Operator action counts only when you say it is running.

The real Simulacrum Prime.

Warframes

Operator

Companions

Weapons

Athodai Prime

Benchmark

Forma plan your rules, and the builds that share these polarities

Parts

Wielder

Mode

Mods

Arcane

Evolution

Valence

Stats

Build

Sim

1 · The fight who you are shooting at, where, and for how long

2 · External bonuses what the wielder is doing, and what others hand them — a ticked number replaces the wielder's own

3 · Limits what this run is allowed to assume

4 · Buffs the stacks the run STARTS with — the fight still grants and decays them on their own triggers

5 · Extra stats anything this weapon is handed from outside its build — it lands in the same bucket a mod would

6 · Warframe buffs abilities cast on this weapon — set your Ability Strength and the values follow

7 · Measure what to read off the run — the scenario's own term, so an official ruler pins it

Result

Shapley analysis

Rivens

All rivens every riven you have made for this weapon, with what it actually rolls

Enemies

All targets every enemy you have made — pick one in the simulator's target list like any other

The search

① Starts

② Limits none by default — click an option to exclude it; a start that pins an excluded option cannot run, one that only holds it has it replaced

The fight

Optimize

—

Forma plan your rules, and the builds that share these polarities

Mods

Arcanes

Archon Shards

Operator

Stats

Abilities

—

Mods

Operator

Focus school

Tektolyst Artifact

What reaches the Warframe