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Watch trailer on Steam ↗Monster Lab Simulator
Round 3 Studios · Published by Round 3 Studios · Official site ↗
Mostly Positive — 74% positive (590 reviews) · 23 achievements
Last updated 28 Sept 2026
Ready to become a mad scientist? Synthesize, evolve, and command an army of unique creatures in your own lab. Manage your laboratory, master genetic essences, and dominate the battle arena in this deep creature collection simulator!
£10.99
Lowest price we've ever recorded
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Price history
Indie, Simulation, Strategy, Early Access, Casual · 2026 · More £5 - £15 games
Explore the depths of creativity as you synthesize and evolve bizarre creatures in Monster Lab Simulator. Dive into a strategic challenge where every decision shapes your lab's fate, all from Round 3 Studios.
About this game
Roadmap to Our Dreams
About the Game
FUEL YOUR SCIENTIFIC CURIOSITY
Monster Lab Simulator delivers the thrill of synthesis and tactical battle. Every experiment is a surprise, and every recipe is a chance to discover something legendary. Are you ready to manage the world's most advanced monster lab?
Purchase mysterious essences, synthesize eggs, and complete their growth in the incubator to bring unique Fulus to life.
Discover hidden recipes by combining various essences. Obtain surprise Fulus and expand your ultimate collection.
Legendary Fulu Battles are about to begin. Prepare your squad and take your place in the war room.
Capture your Fulus with orbs and add them to your collection. These orbs will form your elite battle army.
Sell your orbed Fulus and reinvest to acquire new high-tech products. Expand your lab, accelerate production, and obtain even more powerful Fulus.
Merge three Fulus using the evolution machine. Unlock stronger abilities, higher essence yields, and brand-new tactical combat options.
Keep mischievous Fulus out of trouble, watch over them when they get naughty, and ensure your lab is always a happy, healthy environment for your creatures.
How lucky are you? Spin the lucky lever and win surprises to power up your Fulus.
Obtain special eggs from ancient ambers. Melt the ambers and reveal the eggs hidden within.
Fulus exhausted from battle regenerate in habitats matching their elements. Keep them happy by placing them in the correct elemental zones.
Monster Lab Simulator combines the thrill of synthesis and combat with the joy of collecting and the magic of discovering the unknown—all within your very own monster laboratory.
Other Features:
20 Unique Fulu Families – Discover 20 different Fulu lineages in your lab!
Abilities & Elements – 80 distinct abilities tailored to specific Fulu families and elements!
Order Management – Monitor the order screen and boost your economy by meeting market demands.
New Areas to Explore – Level up to unlock deep sections of the laboratory. Upgrade your facility, enhance machinery, and maintain hygiene.
Assistant Trash Robot – End the lab clutter; add the stylish and hardworking trash robot to your team.
Daily & Weekly Missions – New laboratory tasks await you every single day!
Finally; A Pair of Eyes… – Beware of the eyes that are constantly watching you in the lab.
System Requirements
Will my PC run this? →Minimum
- Requires a 64-bit processor and operating system
- OS: Windows (64-bit) 10
- Processor: Intel Core i5-2500 @ 3,3 GHz (4 CPUs)
- Memory: 8 GB RAM
- Graphics: NVidia GeForce GTX 1050
- DirectX: Version 11
- Storage: 4 GB available space
Recommended
- Requires a 64-bit processor and operating system
- OS: Windows (64-bit) 10
- Processor: Intel Core i7-11700K or AMD Ryzen 7 5800X
- Memory: 8 GB RAM
- Graphics: NVIDIA GeForce GTX 1660S, 6 GB or AMD Radeon RX 5600 XT, 6 GB
- DirectX: Version 11
- Storage: 4 GB available space
Supported Languages
Latest news
AnnouncementsOfficial
Devlog #3: Fulu customization and new Fulus
Hello Scientists!As you know from our roadmap, we’ve been working on multiple planned updates for Monster Lab Simulator. Since the release of the Empower Your Fulus update, we’ve been fairly quiet about what we’ve been cooking, aside from a few snippets we’ve shared on Discord. So, here’s a closer look at some of the things we’ve been working on. My Best Friend is all about giving you more ways to care for your Fulus and make them feel even more personal. CustomizationColor customization for FulusAccessories for the head, mouth, neck, and back, including glasses, hats, bandanas, mustaches, backpacks and moreA machine that lets you apply your customizations to your Fulu (handsome fella)(new merch dropped) InteractionA relationship system for Fulus Calling Fulus to your sidePlaying catch with them... maybe. We’re still testing this one.Actions that increase or decrease your relationship with them, so you may think twice before throwing one into the furnaceNew lab items such as beds for your Fulus (A catch toy!) An Ancient Power AwakensThis update will also introduce a new element and a new area: The Mines. We also wanted to share a first look at some of the new Fulus. These Fulus are still work in progress, so some parts, especially the eyes, are temporary. We hope these updates will be worth the wait. We’re really excited about what’s coming next for Monster Lab Simulator, and we’re looking forward to sharing more as development continues. And if you’d like to chat with us directly, you can join our Discord through the link below. Join the Official DiscordRead full article on Community Announcements (kaju)Patch NotesOfficial
v0.2.3.3 Patch Notes
Hello Scientists 🙋♂️🛠️ You can find the fixes made in version 0.2.3.3 below:Fixed an issue where the Hatch a Rare Fulu from a Common Egg mission would not complete properly.Fixed Battle Room Chamber Feeders not correctly triggering feed missions.Fixed Weekly Protocol missions for Create Fulus not saving progress.Fixed Daily Experiment missions for Win a battle with a team of only Fulus changing element whenever the game was loaded or after returning from battle.Fixed interaction issues between the Easter Special Reward: Floralis Figurine and the Plumber Gun.Fixed a bug causing the Easter Event Mission to exceed its intended mission range.Fixed multiple naming inconsistencies, such as Oxar being shown instead of Oksar.Fixed tutorial softlocks related to opening a room and the tutorial becoming stuck. Existing softlocks should now be resolved after loading your save file.Read full article on Community Announcements (Psotniw)Patch NotesOfficial
🛠️ HOTFIX 🛠️
Hello Scientists 🙋♂️🛠️ You can find the fixes made in version 0.2.3.2 below:Fixed an issue where the Hatch prompt was showing V instead of X in the UI.Fixed an issue where the game getting stuck after taking a nap on the couch.Egg Hunt Special Eggs can now be stored in the Refrigerator.Read full article on Community Announcements (Psotniw)AnnouncementsOfficial
The Egg Hunt Has Begun!
Hello fellow scientist!A small seasonal egg hunt has arrived in the lab.We’ve hidden 7 special eggs throughout the lab for you to find. These eggs can be used just like normal eggs, but they come with better chances of hatching rarer creatures. Hit Level 5 (or load a save that’s already Level 5) to join the event. Once you’re Level 5, special eggs will start appearing around the lab. Collect all 7, and you’ll also receive a special Floralis figurine to keep as a souvenir from the event. This is a small, fun side activity for players who enjoy exploring the lab and hunting for little secrets.Happy hunting!Read full article on Community Announcements (kaju)Patch NotesOfficial
Community Update: Official Round 3 Studios Discord
Hey everyone,We’ve launched the official Round 3 Studios Discord server.This will be our dedicated, developer-run hub for Monster Lab Simulator feedback, bug reports, discussion, and updates. We’ll also continue to stay active here on Steam by reading your discussions, replying to posts, and sharing major news here as well.If you’d like to talk directly with the team, you can join us here: Join the Official DiscordThanks for your support, Round 3 StudiosRead full article on Community Announcements (kaju)
