STEAMDB NEXUS

Steam app 4036850 · updated 13 Sep 2026, 00:04 UTC

Monster Lab Simulator: Prologue

Monster Lab Simulator is a creature collector where you create, raise, and battle monsters in your own lab. Synthesize essences, hatch eggs, expand your collection, and build the ultimate team!

Monster Lab Simulator: Prologue Steam header artwork
Round3 StudiosKiki Games
1playing now
424-hour peak
41all-time peak
2average, last 30 days

The last 30 days

+0.1Gain+5.54%% gain8Peak

204 hourly samples, with the daily peak drawn over them. Weekends are shaded.

0246914 Aug18 Aug22 Aug28 Aug03 Sep07 Sep11 SepFriday 14 August 20264 peakSaturday 15 August 20264 peakSunday 16 August 20264 peakMonday 17 August 20264 peakTuesday 18 August 20266 peakWednesday 19 August 20264 peakThursday 20 August 20266 peakFriday 21 August 20266 peakSaturday 22 August 20264 peakMonday 24 August 20265 peakTuesday 25 August 20264 peakThursday 27 August 20262 peakFriday 28 August 20264 peakSaturday 29 August 20265 peakTuesday 01 September 20264 peakWednesday 02 September 20264 peakThursday 03 September 20265 peakFriday 04 September 20264 peakSaturday 05 September 20266 peakSunday 06 September 20265 peakMonday 07 September 20268 peakTuesday 08 September 20263 peakWednesday 09 September 20264 peakThursday 10 September 20264 peakFriday 11 September 20266 peakSaturday 12 September 20264 peak
Daily peakEvery hourly sample

All time

11 months, November 2025 to September 2026. The highest number of people in the game at once, each month, on a time axis -- a gap in the record stays a gap.

011223344Nov 2025Dec 2025Jan 2026Feb 2026Mar 2026Apr 2026May 2026Jun 2026Jul 2026Aug 2026Sep 2026November 202523 monthly peakDecember 20257 monthly peakJanuary 202618 monthly peakFebruary 202641 monthly peakMarch 202632 monthly peakApril 202619 monthly peakMay 202622 monthly peakJune 20267 monthly peakJuly 202610 monthly peakAugust 20266 monthly peakSeptember 20268 monthly peak
Monthly peak

The last four months

Show:

The highest number of people in the game at once, each month. Four, because four is as far back as the source keeps anything finer than one figure a month.

035811July 2026August 2026September 2026October 2026July 202610 peak — daily detail belowAugust 20266 peak — hourly detail belowSeptember 20268 peak — hourly detail below
Monthly peakHas finer data

July 2026

25 days, each one the highest figure that day. The source keeps no hourly detail this far back. Weekends are shaded.

03581101 Jul05 Jul09 Jul15 Jul21 Jul25 Jul30 JulWednesday 01 July 20265 peakThursday 02 July 20265 peakFriday 03 July 20264 peakSaturday 04 July 20264 peakSunday 05 July 20267 peakMonday 06 July 20264 peakTuesday 07 July 20265 peakWednesday 08 July 20264 peakThursday 09 July 20264 peakFriday 10 July 20263 peakSaturday 11 July 20261 peakMonday 13 July 20263 peakWednesday 15 July 20262 peakThursday 16 July 20264 peakSunday 19 July 20267 peakMonday 20 July 202610 peakTuesday 21 July 20265 peakWednesday 22 July 20266 peakThursday 23 July 20261 peakFriday 24 July 20267 peakSaturday 25 July 20263 peakSunday 26 July 20262 peakMonday 27 July 20263 peakWednesday 29 July 20265 peakThursday 30 July 20263 peak

August 2026

28 days as the curve, each the highest figure that day. Behind it, 99 hourly samples from 14 Aug, which is as far back as the source keeps every hour. Weekends are shaded.

0235601 Aug05 Aug09 Aug13 Aug17 Aug21 Aug27 AugSaturday 01 August 20263 peakSunday 02 August 20262 peakMonday 03 August 20262 peakTuesday 04 August 20264 peakWednesday 05 August 20265 peakThursday 06 August 20263 peakFriday 07 August 20265 peakSaturday 08 August 20266 peakSunday 09 August 20264 peakMonday 10 August 20263 peakTuesday 11 August 20265 peakWednesday 12 August 20265 peakThursday 13 August 20264 peakFriday 14 August 20264 peakSaturday 15 August 20264 peakSunday 16 August 20264 peakMonday 17 August 20264 peakTuesday 18 August 20266 peakWednesday 19 August 20264 peakThursday 20 August 20266 peakFriday 21 August 20266 peakSaturday 22 August 20264 peakMonday 24 August 20265 peakTuesday 25 August 20264 peakThursday 27 August 20262 peakFriday 28 August 20264 peakSaturday 29 August 20265 peakMonday 31 August 20260 peak

September 2026

12 days as the curve, each the highest figure that day. Behind it, 105 hourly samples. Each dip is a night. Weekends are shaded.

0246901 Sep03 Sep05 Sep07 Sep09 Sep11 SepTuesday 01 September 20264 peakWednesday 02 September 20264 peakThursday 03 September 20265 peakFriday 04 September 20264 peakSaturday 05 September 20266 peakSunday 06 September 20265 peakMonday 07 September 20268 peakTuesday 08 September 20263 peakWednesday 09 September 20264 peakThursday 10 September 20264 peakFriday 11 September 20266 peakSaturday 12 September 20264 peak

October 2026

Monster Lab Simulator: Prologue was released on 31 Oct, 2025.

Not out yet.There is nothing to draw for this month.
Nothing here is interpolated or estimated; where a sample is missing the line is broken.

Game information

Free to playUpdated 13 Sep 2026, 00:04 UTC
App ID
4036850
Last updated
19 Jan 2026 build 21556204
Developer
Round3 Studios
Publisher
Kiki Games
Release date
31 Oct, 2025
Platforms
Windows
Download size
1.51 GB
Install size
2.72 GB
Genres
Casual, Indie, Simulation, Free To Play
Game modes
Single-player
Controller support
Unknown

Features & support

Steam features

Steam CloudFamily Sharing

Controllers & input

Accessibility

Popular tags

SimulationEarly AccessCasualCreature CollectorCollectathonImmersive SimRPGStrategyLife Sim3DFirst-PersonRealisticIndieColorfulCuteFree to PlayFamily FriendlyScienceEconomyRelaxing
About this gameFull description from Steam
In this prologue, you step into Monster Lab Simulator: Prologue – experience the first steps of becoming the ultimate monster creator and battle master! Discover the thrill of synthesizing mysterious essences, hatching rare eggs, and expanding your lab in this limited free version. Buy mysterious essences to hatch unique Fulus from fragile eggs. Every experiment is a chance to create something new. Discover hidden recipes by combining different essences. Unlock surprise creatures and expand your growing collection. Enter turn-based battles in the station. Compete in tournaments for big rewards or test your team in free matches. Orb your creatures to keep them forever in your permanent collection. Store their stats and create powerful combinations. Sell your stored orbs for profit and invest in powerful new machines. Expand your lab, speed up production, and unlock stronger creations. Combine three Fulus into one evolved form with the merge machine. Unlock stronger abilities, higher essence yield, and powerful new battle options. Keep your playful Fulus out of trouble, look after them when they get mischievous, and make sure your lab stays a place where creatures feel happy and healthy. Monster Lab Simulator delivers the thrill of synthesis and battle, the joy of collection, and the magic of uncovering the unknown all inside your very own monster lab.
Content & age ratings2 regional ratings

Regional ratings

DEJUS10Violência
IGRS13Kekerasan
System requirementsMinimum and recommended hardware

Minimum

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: 10 GB available space

Recommended

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: 10 GB available space

macOS

Minimum: Recommended:

Linux

Minimum: Recommended:
Supported languages18 languages
LanguageFull audio
English
French
Italian
German
Spanish - Spain
Simplified Chinese
Portuguese - Brazil
Dutch
Traditional Chinese
Japanese
Korean
Polish
Portuguese - Portugal
Russian
Turkish
Ukrainian
Spanish - Latin America
Arabic

A blank audio cell means full audio was not marked in the returned language list.

Screenshots & trailersScreenshots and trailers

Trailers

AchievementsTotal count and selected achievements

14 developer announcements, Oct 2025 to Feb 2026 · times in UTC

February

  1. 🚀 Table Battle Simulator is OUT NOW on Steam!

    A new day, a new excitement… After months of hard work, we’re thrilled to finally share our new game with you. https://clan.fastly.steamstatic.com/images/45019171/58495d8a86546ca08bdc38193df7846445ea880c.png For collectors, strategists who…

    Damo53
  2. 🎉 LAST 24 HOURS FOR TABLE BATTLE SIMULATOR 🎉

    https://clan.fastly.steamstatic.com/images/45019171/d5646d4a59fff9a49d0939e904a341834257dcdf.png Table Battle Simulator will be released in 24 hours. Are you ready for table battles? If you haven't added it to your wishlist yet, click the…

    Damo53
  3. 🎉 🎉 Monster Lab Simulator is out 🎉 🎉

    The moment you've been waiting for has arrived! Monster Lab Simulator is now available to play on Steam! 🎉 https://clan.fastly.steamstatic.com/images/45019171/766ec6258983da80ca4be39ba32d5b055affed31.png The lab is ready. The machines are…

    tunahanlatif
  4. ✨ THE BIG DAY HAS ARRIVED! Monster Lab Simulator is OUT NOW! ✨

    The moment we've all been waiting for has arrived! Monster Lab Simulator is now available to play on Steam! 🎉🎉🎉We would like to thank all our players, supporters, and our amazing team who have been part of this journey. 💚🐣 What awaits you?🧪…

    tunahanlatif
  5. Monster Lab Simulator Launches Today 🎉

    Time is running out, Monster Lab Simulator is coming in hours... 🧪⚡ https://clan.fastly.steamstatic.com/images/45019171/3dbf76cdc8ddddddb8e5dbd5ea93ad851833c43a.png The lab is ready. The machines are running. The fools are impatient. What…

    tunahanlatif

January

  1. 🔥 TABLE BATTLE SIMULATOR EARLY ACCESS COMING FEBRUARY 16!

    The highly anticipated Table Battle Simulator will be released on February 16, 2026. https://clan.fastly.steamstatic.com/images/45019171/e30274337a778296b94f3e6b239f22f7105f87ac.png Don’t forget to watch the new trailer and add the game to…

    tunahanlatif
  2. 🔥 MONSTER LAB SIMULATOR EARLY ACCESS IS COMING ON FEBRUARY 13TH!

    We are thrilled to announce the release date of the highly anticipated Monster Lab Simulator. Monster Lab Simulator will be available on February 13, 2026.…

    tunahanlatif
  3. 📢 TABLE BATTLE SIMULATOR IS COMING ON FEBRUARY 16! 🔥🔥

    ⏳ The countdown has begun! 📢 Table Battle Simulator will be available in Early Access on February 16, 2026.💎 WHAT’S NEW IN EARLY ACCESS?🛒 New Store - A new store exclusive to Early Access is now open!⚔️ New Warrior Series - Two brand-new…

    tunahanlatif
  4. 📢 MONSTER LAB SIMULATOR EARLY ACCESS IS COMING ON FEBRUARY 13! 🔥🔥

    ⏳ The countdown has begun!📢 Monster Lab Simulator launches in Early Access on February 13, 2026.💎 WHAT’S INCLUDED IN EARLY ACCESS?🧬 Major Laboratory Update! – With brand-new content, the Fulu world is more alive than ever!🔬 16 New Fulu…

    tunahanlatif

October

  1. 📢 PROLOGUE OUT NOW! 🔥

    Monster Lab Simulator: Prologue Out Now!Hello Scientist, 🧪 The tubes are bubbling, the orbs are glowing, and… something suspiciously alive just moved on your desk. 👀 That can only mean one thing the Monster Lab Simulator: Prologue is Out…

    marketyek
  2. 🧪 MONSTER LAB SIMULATOR: PROLOGUE - COMING SOON! 🔥

    {STEAM_CLAN_IMAGE}/45801212/df7c3416bc26f4c138e3066a0f70c39c470a2e4f.png Step into your very own creature lab and prepare to uncover the strange, the unexpected, and the downright powerful! Monster Lab Simulator: Prologue is launching soon…

    marketyek
  3. Devlog #1 - Monster Lab Simulator

    Greetings, Mad Scientists! 🧪 {STEAM_CLAN_IMAGE}/45801212/3226020f3f27dadd388c7bab13d98989310a576e.png Thanks so much for playing our demo and wishlisting the game during Steam Next Fest! We saw you. 👁️ Yes, YOU. You were under our…

    marketyek
  4. Monster Lab Simulator Demo is LIVE for Steam Next Fest!

    🧪 Welcome to the Lab! Our Monster Lab Simulator demo is now live for Steam Next Fest. https://clan.akamai.steamstatic.com/images/45019171/a81a0115477ef6f7e2102190829cdd9338fc72d0.png A FREE demo is now live as part of Steam Next Fest! 🎉 🎮…

    mkilci
  5. Table Battle Simulator Demo is LIVE for Steam Next Fest!

    ⚔️ Welcome to a world where collectible figures come to life and every customer is a new challenger. Our Table Battle Simulator demo is now live as part of Steam Next Fest!…

    mkilci

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