Place, flip, steal
Five rats each, nine squares, one board. Every placement can flip a neighbour, and every flip can be flipped back.
· the mutant rat card battler for PCMutant rats. Dirty tricks. Total lab chaos.
A tactical card battler for PC. Build a team of mutant rats, outsmart rival students in turn-based duels on a three-by-three board, and evolve your favourites into something the lab safety manual never planned for.
Card duels play out on a three-by-three board. Each rat card has a number on all four sides: place it next to a rival's rat and, if your side is higher, that rat switches to your colour. When the board is full, whoever holds more rats wins the duel.
Five rats each, nine squares, one board. Every placement can flip a neighbour, and every flip can be flipped back.


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.
Level a rat up, roll it into the evolution chamber and watch it come out as something new: new art, new numbers, new problems. Snifire dreams of being a dragon. Give it time.
Every rat is hand-drawn, rigged and alive: they blink, gloat, sulk and attack. The full game has 177 of them 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 with the character creator: build, face, hair, outfit and accessories, drawn in the same style as the rats. 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.
The first Closed Beta opens the lab to a small group of invited testers:
Anyone can download the Laboratz Launcher for Windows 10 and 11 (64-bit): it installs, updates and starts the Beta. Your invite code is what opens the doors. Invitations go out through the official community channels.
Test builds are not code-signed yet, so Windows may show a SmartScreen notice the first time. 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.
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.
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.
Download the Laboratz Launcher from this site; anyone can install it. The Beta itself is invite-only: enter the invite code you received through the official community channels and the launcher lets you in.
The game's interface is in English, Spanish and Arabic.
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 ›