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Monster Lab Simulator

Monster Lab Simulator

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!

Released Feb 13, 2026 Developer Round 3 Studios Platforms Windows Early AccessCreature CollectorSimulationCollectathonImmersive Sim
View on Steam ↗ $12.99 (US · as of 2026-09-26)

What players say

Steam review score and the most-helpful voices, which may include critical ones. Score via Steam as of 2026-09-25.

73.6%positive590 reviews
Recommended · 2 found this helpful

“Game is pretty fun. Can't wait for future updates! And this game isn't abandoned, the devs confirmed they are still working on it in the discord server.”

— a player, Steam review · 9 hrs played
Recommended · 1 found this helpful

“Hello everyone! I played the game for 10 hours and it was nice but very short, it desperately needs additional content. The Pro's: - Cute monsters - Good gameplay loop with breeding the monsters to get the highest rarity ones - I like that you can sell them, fight them, and…”

— a player, Steam review · 11 hrs played
Not recommended · 18 found this helpful

“it pains me to say this but dont buy it i had fun in this game but it felt unpolished and incomplete. its early access so yeah it should feel that way and the devs were active and had road maps and said that there was more content on the way that i was so excited for. yet here…”

— a player, Steam review · 18 hrs played
Read more reviews ↗

Player activity

Monthly average concurrent players. Live data self-collected from the Steam API · history through 2026-08 via SteamCharts.

601all-time peak
0 250 500 227 avg · Feb 2026

Achievement stats

Global completion rates across all Steam players — a data view of how far people actually get. Source: Steam official stats · as of 2026-09-26.

23achievements
3.9%median completion
0.2%rarest: Undead
66.9% of players 48.0% of players 30.1% of players 26.5% of players 26.3% of players 11.9% of players 11.6% of players 10.9% of players 8.3% of players 7.1% of players 4.1% of players 3.9% of players 3.7% of players 3.1% of players 2.4% of players 2.2% of players 1.1% of players 1.0% of players 0.8% of players 0.8% of players 0.5% of players 0.5% of players 0.2% of players 66.9% 0% most earned rarest
Almost everyone has
66.9%Is that Evolution? — Create an Adult Fulu
48.0%My Precious — Own a Legendary Fulu!
30.1%Archeologist! — Smelt Amber 30 times!
Rarest badges of honor
0.2%Undead — Same Fulu died 3 times in the same battle!
0.5%Nerimpossible! — Win a battle with 3 Neri's!
0.5%Fulumetal Alchemist — Win a battle with three different Fulus, where each one has drunk a different Elixir and been injected with a different Steroid.

Price tracking

US-region pricing (USD), sampled twice daily by our own tracker since 2026-09-26. Steam prices vary by region — always confirm your local price on Steam.

$12.99current · sampled 2026-09-26 21:12 UTC
$12.99lowest since tracking began2026-09-26
US12.99 USD
EU12.99 EUR
UK10.99 GBP
Australia18.95 AUD
Canada16.99 CAD
Japan1,500 JPY
Brazil39.99 BRL
China49.00 CNY

Regional prices at last sample, in local currency — Steam sets each region's price independently.

China≈$7.3 Brazil Japan Canada US Australia UK EU≈$15

Cheapest → most expensive, converted to USD at ECB reference rates (2026-09-25). Relative comparison only.

Latest official news

Developer announcements via the Steam news API — links go to the original posts. More across all games on the news hub.

Apr 14, 2026
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 ab

Apr 13, 2026
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 Chamb

Apr 01, 2026
🛠️ 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 a

Apr 01, 2026
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 wi

Mar 27, 2026
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’l

Screenshots

Official Steam store screenshots — click any shot to enlarge.

Facts & details

From the Steam store record, snapshot 2026-09-25.

GenresCasual, Indie, Simulation, Strategy, Early Access
Player tagsEarly Access · Creature Collector · Simulation · Collectathon · Immersive Sim · Casual · Relaxing · Management · Science · Strategy · Life Sim · Colorful (Steam store community voting)
FeaturesSingle-player · Steam Achievements · Adjustable Text Size · Camera Comfort · Color Alternatives · Custom Volume Controls · Playable without Timed Input · Save Anytime
LanguagesEnglish, French, Italian, German, Spanish - Spain, Simplified Chinese, Portuguese - Brazil, Traditional Chinese, Japanese, Korean, Polish, Portuguese - Portugal, Russian, Turkish, Ukrainian, Dutch, Arabic, Spanish - Lati…
Achievements23
Official sitehttps://monsterlabsimulator.com
Minimum system requirements (PC)

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