Tool
Essence synthesis calculator

Breeding Calculator

Combine three essences to predict outcomes. Results are tagged as unverified until confirmed in live Early Access builds.

Community recipes only
Step 01

Slot Essences

Choose three essences to match known synthesis recipes or test new combinations.

Step 02

Filter Outputs

Filter results by rarity, element, habitat, and growth stage to target a lab goal.

Step 03

Log Results

Save verified outcomes and tag them to the monster database for future runs.

Essence Primer

The calculator mirrors the Monster Lab Simulator synthesis loop: mix three essences, hatch eggs, and record the outcome. Track every result so your lab keeps improving.

Fire Essence
Water Essence
Nature Essence
Neutral Essence

Data Coverage

Known Recipes39
Unique Outputs36
Verified Recipes20
View monster database (37)
Official Loop

Prologue Synthesis Basics

  • Buy essences to hatch unique Fulus from eggs.
  • Discover hidden recipes by combining different essences.
  • Enter turn-based battles in the station, tournaments, or free matches.
Official Loop

Lab Expansion & Orbs

  • Orb your creatures to keep them in a permanent collection.
  • Sell stored orbs, invest in machines, and expand your lab.
  • Merge three Fulus to evolve stronger forms with better abilities.
  • Keep Fulus happy and your lab healthy as they get mischievous.

Prologue Quickstart

Use the prologue loop to validate your breeding notes alongside live Early Access builds.

Prologue
  • The prologue is a limited free version that covers the first steps of the lab.
  • Synthesize essences, hatch rare eggs, and expand your early lab layout.
  • Experiment with essence combinations to discover new Fulus.

Early Access Notes

Expect the breeding loop to evolve as feedback and new systems arrive.

EA FAQ
  • Early Access is meant to deliver the core loop: hatching, evolving, lab management, and battles.
  • Orders and deliveries create objectives that support progression.
  • Early Access pricing will rise after the full release.

Official Synthesis Stations

These systems anchor the breeding workflow in the official Monster Lab Simulator loop. Use them to label your recipes and lab notes.

Official
Essences
Incubate

Buy essences, hatch fragile eggs, and uncover fresh Fulu lineages.

Recipes
Experiment

Mix different essences to discover hidden recipes and surprise outcomes.

Evolution
Merge

Combine three Fulus into a stronger evolved form with higher yields.

Community feedback is gathered through Discord and Steam discussions.
Full release is currently planned within 12 months of Early Access.

Documentation Standards

Keep breeding notes consistent so recipes can be verified faster.

Checklist
  • Log the essence trio and output result every run.
  • Record the build/version where the recipe was tested.
  • Tag the output with rarity, element, stage, and habitat.
  • Mark community findings as unverified until confirmed.
Official Synthesis Visuals
Use these captures as references when documenting recipes.
Steam
Monster Lab Simulator egg handling and incubator stations
Egg handling zone with incubators, synthesis benches, and the habitat display in view.
Steam
Monster Lab Simulator amber egg and heat station
Golden amber egg staged near heat equipment and lab benches for special hatching runs.
Steam
Monster Lab Simulator Fulu close-up at the capsule station
Close-up of Fulu handling equipment used for transfers, upgrades, or evolution prep.

Synthesis Results

Filter by output rarity, element, habitat, or growth stage to narrow the list.

Result matches are community-reported and need verification.
InputsOutputUnlockStatus
Fire Essence
Water Essence
Nature Essence
Poro
Epic
Hybrid
Lv. 9
Verified

Monster Database

Attach verified recipes directly to monster entries.

Open Monster Database

Lab Guides

Cross-reference breeding routes with habitat layouts.

Open Lab Guides

Media Gallery

Use official captures to annotate breeding stations.

Open Media Gallery