The Free Talystro Demo is Live - A Roguelite Deckbuilder Where You Need Maths to Win
The free demo is live now on Steam. Face the Necrodicer, master arithmetic combat and see why players are calling it “the most fun I’ve ever had doing math.”
Independent Norwegian studio Filiokus today launched the free public demo for Talystro. This roguelite deckbuilder challenges players to think differently about combat by turning mathematics into its core weapon. Talystro combines dice rolls, cards, and creative arithmetic, casting players as the unlikely Math Mouse standing against the evil Necrodicer and an army of corrupted numbers brought to life.
In Talystro, combat isn’t about slowly chipping away at enemy health. Instead, players must match the exact value of their enemies to defeat them instantly. Each card contains unfinished calculations, variables and modifiers, while dice rolls dynamically shape the possibilities available each turn. Success depends on understanding the order of operations, adapting to shifting probabilities and making strategic decisions as each encounter unfolds.
The demo drops players straight into the Wildlands, the first act of Talystro’s world, for a complete run of seven levels, culminating in a boss fight that puts everything learned to the test. Including two modes playing on Normal or Expert, a full run takes around 45 minutes, packed with decisions, dice rolls and the satisfying click of a perfectly matched calculation.
The studio’s signature hand-drawn, frame-by-frame animation style has expanded throughout the experience, with new animations woven into the moment-to-moment flow of play. Music and full sound design are now part of the game, adding a layer of personality and charm that brings the world of Talystro to life in a way the closed build only hinted at.
Talystro is built on our belief that mathematics is fundamentally creative,” said Martin Lothe Sæterdal of Filiokus. “With this demo, we’re inviting players to experiment, adapt, and discover the beauty of problem-solving through play. The best feedback we’ve received so far? ‘This is the most fun I have ever had doing math.’”
What’s in the Demo
A complete first act run through the Wildlands, across seven levels, including a boss fight
Around 45 minutes of play per run, with Normal and Expert modes available from the start
Dice and card combat where creativity and arithmetic are your only weapons
A growing collection of cards, upgrades and artifacts to discover across each run
New unlocks that carry over between runs, rewarding continued play
Hand-drawn, frame-by-frame animations and full music and sound design throughout
Accessible by design, no time pressure, no camera movement, built for thoughtful play