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Watch trailer on Steam ↗functional
yancouto · Published by Marvellous Soft
Mixed — 62% positive (42 reviews) · 9 achievements
Last updated 27 Sept 2026
functional is a puzzle game about math and abstraction.
£6.29
Lowest price we've ever recorded
View on SteamPrices can lag the live Steam store — always confirm before buying.
£6.29
Price history
3 Sept 2026Lowest: £6.29 · Highest: £6.299 Oct 2026
Simulation · 2021 · More £5 - £15 games
Delve into the intricate world of functional, a puzzle game where mathematical concepts come to life. Navigate complex challenges that test your understanding of abstraction within a simulation setting crafted by yancouto.
About this game
Check our new puzzle game!
About the Game
functional is a puzzle game about math and abstraction. Solve problems and reuse your solutions to write ever-more-complex logic.Start from scratch
Start with the simplest mathematical primitives. Everything is a function, and functions can be used to build everything else.
Solve increasingly complex problems
Use your previous solutions as black boxes, and use them as building blocks to build more complex solutions.
Compare your solutions
Compare your solutions against other players, and against your Steam friends, both in efficiency and simplicity.
Workshop support
Create your own levels and share them with the community.
System Requirements
Will my PC run this? →Minimum
Minimum:
- Requires a 64-bit processor and operating system
- Storage: 200 MB available space
Recommended
Recommended:
- Requires a 64-bit processor and operating system
Supported Languages
English
Latest news
AnnouncementsOfficial
New free DLC + new game
We are releasing a new DLC with 13 levels today*! It is about binary trees and binary search trees, their definition and implementation. https://store.steampowered.com/app/2807750/functional__trees?utm_source=functional&utm_content=update It is free and should appear in your list of problems as soon as you download it. * Mac version is only currently available for Apple Silicon builds, and needs to be opted in through Betas > "experimental". At the same time, we're releasing our new game, Liquidum: https://store.steampowered.com/app/2716690/Liquidum?utm_source=functional&utm_content=update It is an abstract logic grid puzzle game, based on picross, but with many additional mechanics. Is it easier than lambda calculus? Find out!Read full article on Community Announcements (Yan)AnnouncementsOfficial
functional v1.1 - Achievements!
The new update adds achievements for finishing full sections and for using Workshop.Read full article on Community Announcements (Yan)
