Place, flip, steal
Five rats each, nine squares, one board. Nothing is safe until the last card lands.
· the mutant rat card battler for PCSteal their rats. Mutate yours. Blame Igor.
A card battler for PC where one clever move turns the whole board. Five rats, nine squares, and a rival who thinks they've already won. You'll learn it in one duel. You'll want a rematch before it ends.
It's free: just join the lab on Discord. No card, no password.
Put a rat next to a rival's. If your number beats theirs, that rat changes sides. Simple, until they do the same to you with their last card. When the board is full, whoever holds more rats wins, and you'll know exactly which move cost you the duel.
Five rats each, nine squares, one board. Nothing is safe until the last card lands.


Mutant beats Radioactive, Radioactive beats Mechanical, Mechanical beats Mutant. The weaker rat loses a point on every side before the numbers are compared.
Super Cheese makes one of your rats stronger, a Rat Trap waits on an empty square, the Taser freezes a rival rat, and Fog hides your numbers. One per turn. Pick the moment that hurts most.
Level a rat up, roll it into the evolution chamber and wait. What comes out has new art, new numbers and new problems. Snifire dreams of being a dragon. Give it time.
They blink, gloat, sulk and attack, and you will end up with a favourite. The full game has 177 to collect. A few residents of Floor 1:

The basic rat, found behind some furniture and caught with a piece of cheese.

But but but… give him a tissue, for pity's sake!

Terrible for both himself and his enemies, Frart is not afraid to let go. Seriously.

This rat with purulent pustules can be very dangerous at short or long range…

Indiarat spends his time playing with his tail!

Trains very hard to become the heavyweight champion of the Academy.

Students use Scrates to dig tunnels under the school. One may have reached the other side of the world.

Snifire dreams of being a dragon! For the moment, he really is not…

For decades, considered the ultimate rat for lighting barbecues.

Terribly ferocious, with insane strength. Breathes fire. From both ends.
Before the first duel, build the student who walks into the lab: build, face, hair, outfit and accessories, drawn in the same style as the rats. That's your face on the line from now on. Igor will still get your name wrong.

Five floors of rival students, each with a champion at the top of the stairs. Floor 1, The Arrival, opens in the Closed Beta. The other doors stay sealed until launch, and something behind them keeps knocking.
Floor 5Sealed
Floor 4Sealed
Floor 3Sealed
Floor 2Sealed
Floor 1 · The ArrivalOpen in the BetaScreenshots captured in the game, nothing painted over.
Behind the door today:
Three steps and you're in:
Free, with no card and no password. One code per Discord account, good on 2 PCs for 30 days. It's unfinished, so things will break: tell us, and the team reads every report.
An honest warning: test builds aren't code-signed yet, so Windows may show "Windows protected your PC" the first time. Click More info, then Run anyway. Download the launcher only from laboratz.com.
Privacy: what the Beta keeps, and why · support@laboratz.com

Laboratz is a tactical card battler for Windows PC. You collect mutant rats, place them on a three-by-three board and capture your rivals' rats by beating their numbers and elements. Between duels you level your rats up and evolve them in the lab.
The Closed Beta is free: your code costs nothing and we never ask for a card. The price of the full game hasn't been announced.
Download the Laboratz Launcher from this site; anyone can install it. Then get your free Beta code: join the lab on Discord, open #get-beta-access, and enter the code in the launcher.
One code per Discord account, good on 2 PCs for 30 days. The lab gives out a limited number of codes each day: if today's are gone, come back tomorrow.
A PC with Windows 10 or 11 (64-bit), an internet connection and about 1 GB of free space. On a PC with Smart App Control turned on, the Beta can't run yet.
Each rat card has a number on its four sides. Place a rat next to a rival's rat: if your facing side is higher, the rival's rat becomes yours. Elements (Mutant, Radioactive, Mechanical) and dirty tricks change the maths. When the board is full, whoever holds more rats wins.
The full game has 177 rats to collect, neutral or of one of the three elements, and many of them evolve into new forms. The Closed Beta includes the rats of Floor 1 and the fire dragon line from Snifire to Rapalm.
It's the same family: a three-by-three board, numbers on four sides and cards that flip. Laboratz adds elements, dirty tricks and rats that evolve into something else.
Yes. Laboratz began as a Facebook game in 2013. This is the same lab rebuilt for PC: everything redrawn, with new rivals.
Online duels against other players are in development, on dedicated servers that decide every result. They are not part of the Closed Beta.
Laboratz is in development for Windows PC, and its Steam page is coming soon. No release date has been announced.
The game's interface is in English, Spanish and Arabic.
Closed Beta
No waiting list and no card. Press the button on our Discord, take your code, and the lab doors open. One code per account.
Read the news ›Closed Beta
The first lab coats are being handed out. Floor 1, The Arrival, is yours to conquer: four rivals, one very nervous assistant, and more mutations than the safety manual allows.
Read the news ›Story
Level a rat up, feed it to the evolution chamber and watch it become something new. Igor calls it science. The fire extinguisher calls it overtime.
Read the news ›The Academy
Floors 2 to 5, online duels and the shop stay locked during the Beta. Rattle the doors if you like: they open when Laboratz launches.
Read the news ›