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Monster Lab Simulator on Steam

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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!

Monster Lab Simulator is a early access, creature collector and simulation game developed and published by Round 3 Studios.
Released on February 13th 2026 is available on Windows, Steam Deck and Steam Machine.

It has received 591 reviews of which 432 were positive and 159 were negative resulting in a rating of 7.0 out of 10. 😐

The game is currently priced at 9.74€ on Steam with a 25% discount.


The Steam community has classified Monster Lab Simulator into these genres:

Media & Screenshots

Get an in-depth look at Monster Lab Simulator through various videos and screenshots.

System requirements

These are the minimum specifications needed to play the game. For the best experience, we recommend that you verify them.

Windows
  • 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

User reviews & Ratings

Explore reviews from Steam users sharing their experiences and what they love about the game.

2 hours played
June 2026
Lots of potential, but it needs more content. The biggest strength of this game is that it fills a huge gap in the market. There are very few games built around mixing creatures, and even fewer that do it well. Right now, the gameplay loop is mostly just mixing pets and sending them into battle. The battles themselves are repetitive and not particularly engaging. The evolution variety also feels limited. Tier 2 and especially Tier 3 pets don't differ enough, tier 3 always just ends up being a dog with the colour scheme of the first pet A solid foundation, but it needs more depth and variety to stay interesting long-term.
4 hours played
April 2026
I hate giving a “Not Recommended” review, especially since I genuinely enjoyed the game at the start. But I can’t shake the feeling that I got tricked a little. This looked like a monster‑creation game where you’d also use those monsters to battle. But the battle system is completely optional — and honestly, it might as well not exist. The battles are worthless, far too easy, and the rewards are terrible. You get 100 in‑game dollars for a win and a few tickets that might give you another 100 dollars… or just trash. Meanwhile, it costs around 100 in‑game dollars to create a single monster, and you need at least three to even participate in battles. The real gameplay loop is basically just making monsters to sell them. But not all monsters are eligible for selling, and the sell list changes every in‑game day. That’s the only reliable way to make money, which you then need to create more monsters… only to sell them again and repeat the exact same process. At first that’s fine — I usually enjoy that kind of loop — but it gets boring extremely fast. You’re not making monsters to use them in battle. I mean, you can, but it’s a complete waste of time since you gain nothing from it unless it’s part of the daily challenges. Then there’s the building aspect. The autistic side of me hates that movable items don’t snap into place and are impossible to align perfectly. And if you pick up an item that has stuff inside it, you can’t throw it — you have to walk it over and place it manually, which gets old very quickly. In short, the game has you doing the exact same thing over and over. After about an hour, you’ve seen everything: inject eggs, incubate them, hatch them, merge three of the same together, repeat until you get one that’s on the sell list, sell it, and start the whole cycle again. And if you think, “Well, at least I can use my strong monsters in battle,” that’s just a change of scenery. You’re basically a spectator for 1–2 minutes watching a simple, boring fight you have no influence over, which you’ll most likely win easily. And for that you get 100 dollars… while selling that same monster could earn you thousands, only for you to remake it later anyway. I hope this helps you decide before buying it. I enjoyed the first hour, but after that it felt like the developers were inspired by the movie Groundhog Day.
8 hours played
March 2026
I love this game so far! please don't get confused by all the comments that say that u can purchase stuff only a limited time a day. it is counted in in-game days ( 24 minutes each ) i think that's perfectly fine! especially since it is SUPPOSED to be a grind. it is a Simulator overall. there is definitly a few more things this game could add. i would suggest more essences! id love a fairy type for cute fairy like creatures, flower types, food types for sweet creature, an air type for winged ones and maybe sun and dark essence, basics as earth, stone etc. another thing is that id like to merge different creatures together to create a different one that u can't get through eggs and essences. AND BIGGER STORAGE OPTIONS PLEASE! for an early access this is an amazing cute game c: good job! only thing i think does not make sense at all is that a hybrid is less strong than the beginner fulus! please fix that and make the hybrids actually stronger c:
2 hours played
March 2026
The game is alright, You definetly get a few hours of fun out of it. Maybe with future updates and more content it will become more enjoyable. BUT if you have a second screen, beware of struggle since you can't choose your resolution, no matter which screen you are playing on. Drawing tablets count btw, the game will always pick the smaller screen and you don't get options to change the resolution.
66 hours played
March 2026
If you like cash cleaner sim you'll like this. I personally love the game it is very well polished for an early access game. Really love the game if you guys are interested in a wish list for the game. I would love controller support, something that tells me what each snack, potion and shot does, a way to buy specific eggs (I understand if you don't want to do this one because of the amber), a Fuludex that tells you about every fulu youve unlocked, right now I can only do it with ones you have in the lab or in balls. These are the only things I can think of at the moment but would really like to see!

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Frequently Asked Questions

Monster Lab Simulator is currently priced at 9.74€ on Steam.

Yes, Monster Lab Simulator is currently available at a 25% discount. You can purchase it for 9.74€ on Steam.

Yes, Monster Lab Simulator received 432 positive votes out of a total of 591 achieving a rating of 6.97.
😐

Monster Lab Simulator was developed and published by Round 3 Studios.

Yes, Monster Lab Simulator is playable and fully supported on Windows.

No, Monster Lab Simulator is not playable on MacOS.

No, Monster Lab Simulator is not playable on Linux.

Yes, Monster Lab Simulator is playable on Steam Deck, though it might require a few minor tweaks. Make sure to check the Steam store page and community feedback on ProtonDB for exact compatibility details.

Yes, Monster Lab Simulator is playable on Steam Machine, though it might require a few minor tweaks. Make sure to check the Steam store page and community feedback on ProtonDB for exact compatibility details.

No, Monster Lab Simulator does not support VR.

Monster Lab Simulator is a single-player game.

No, Monster Lab Simulator does not currently offer any DLC.

No, Monster Lab Simulator does not support mods via Steam Workshop.

No, Monster Lab Simulator does not support Steam Remote Play.

Yes, Monster Lab Simulator is enabled for Steam Family Sharing. This means you can share the game with authorized users from your Steam Library, allowing them to play it on their own accounts. For more details on how the feature works, you can read the original Steam Family Sharing announcement or visit the Steam Family Sharing user guide and FAQ page.

You can find solutions or submit a support ticket by visiting the Steam Support page for Monster Lab Simulator.

Data sources

The information presented on this page is sourced from reliable APIs to ensure accuracy and relevance. We utilize the Steam API to gather data on game details, including titles, descriptions, prices, and user reviews. This allows us to provide you with the most up-to-date information directly from the Steam platform.

Additionally, we incorporate data from the SteamSpy API, which offers insights into game sales and player statistics. This helps us present a comprehensive view of each game's popularity and performance within the gaming community.

Last Updates
Steam data 26 October 2026 01:21 UTC
SteamSpy data 19 October 2026 07:05 UTC
Steam price 26 October 2026 20:35 UTC
Steam reviews 18 October 2026 22:00 UTC

If you'd like to dive deeper into the details about Monster Lab Simulator, we invite you to check out a few dedicated websites that offer extensive information and insights. These platforms provide valuable data, analysis, and user-generated reports to enhance your understanding of the game and its performance.

  • SteamDB - A comprehensive database of everything on Steam about Monster Lab Simulator
  • SteamCharts - Analysis of Monster Lab Simulator concurrent players on Steam
  • ProtonDB - Crowdsourced reports on Linux and Steam Deck Monster Lab Simulator compatibility
Monster Lab Simulator
Rating
7.0
432
159
Game modes
Features
Online players
31
Developer
Round 3 Studios
Publisher
Round 3 Studios
Release 13 Feb 2026
Platforms
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