

Monster Lab Simulator: Prologue
Round3 Studios · October 31, 2025 · Simulation, Early Access, Casual, Creature Collector, Collectathon
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No store is currently selling Monster Lab Simulator: Prologue. It released on October 31, 2025 and was developed by Round3 Studios. We keep tracking it across every store we cover, so set an alert below and you will know the moment it is on sale again.
Screenshots
About Monster Lab Simulator: Prologue
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.
Monster Lab Simulator: Prologue — game info
- Platforms
- Windows
- Player modes
- Single-player
- PC Game Pass
- Not included
What Steam players say
Recent verbatim reviews from Steam — separate from playze.io community reviews below.
Monster Lab Simulator: Prologue is a quirky casual game that many players find fun and promising, though opinions are mixed on its current state. Common complaints include tutorial bugs, severely limited experimentation options in the prologue, and frustratingly small storage and organization systems that make space management tedious. Players suggest waiting to see how the full game addresses these issues before deciding whether it's worth purchasing.
I first want to point out that this is effectively a demo for Monster Lab Simulator, and that the job of a demo is to demonstrate the appeal of a game and to make a good first impression that makes you want to play more. With that In mind, here is my experience with the demo: I try to follow the tutorial, only for it to bug out and get desynced from my progress in the egg-making phase and fail to recognize that I've already incubated it, forcing me to make and incubate another egg to progress. I try to experiment with that second egg by giving it one of each element as is supposedly a part of the game's appeal; only to be disappointed by getting nothing and belatedly realizing that experimenting is not allowed in the demo. Only the four most basic and obvious types are allowed. I hatch one of each basic element and realize they are nearly palette swaps of each other. I didn't remember the trailer and now that I've seen it again that appears to be a flaw with the game as a whole. At that point I quit. Maybe it does have better parts I didn't see and maybe I'll come back someday and decide that I like the game, but for now the purpose of a demo is to demonstrate the appeal of a…1 found this helpful
fun!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
This looks very promising! Hoping the main game does well!
great game.
LOL THIS GAME IS SO FUN :D
it is a quirky game, its pretty good for a casual FPS suck in a room game... however i personally do not think it is worth the price. it runs well, it is pretty smooth, no customization of anything really, super limited space to place gear/equipment you use regularly... shelving for eggs and chemicals/vials is rediculously small and absolutely useless because of that... far as i can tell you cannot hire assistants, or plan ahead... it would be better if it had a snap to grid setup for placing tables/shelving/equipment (on floor, on tables, etc.) to help better organize space... it would also be a major help if you repare or get rid of the junk that clogs certain areas of the room (upper and lower/base). if you want a casual FPS game that is a bit cartoony and dont mind spending the money this one is for you, also aside from the garbage that blocks movement the game runs spoothly.
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