Discover the challenging fun of validating logical proofs, beginning with simple propositional calculus and ending with complex, multi-domain propositional calculus. Prove yourself to be a master of logical thinking!

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Planlagt utgivelsesdato: August 2026

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Om spillet

Every argument begins with set of premises that, if true, necessitate some conclusion. Your task is to prove that the conclusion does indeed follow.

Given a set of premises, apply rules of inference and replacement to derive new propositions — step by step — until you reach the conclusion. Each level is a proof waiting to be completed.

As a newly aware intelligence, each proof explores themes of being and essence, virtue, the soul, causality, and the pursuit of truth. Simply put, you are a mind reasoning its way from first principles toward understanding.

Features

  • 120+ handcrafted levels spanning propositional logic and predicate calculus, levels varying both thematically and mechanically

  • 23 rules of logic — 7 rules of inference (Modus Ponens, Modus Tollens, Hypothetical Syllogism, and more), 11 rules of replacement (Double Negation, De Morgan's Laws, Transposition, and more), and 5 quantifier rules (Universal/Existential Instantiation and Generalization, Quantifier Negation)

  • Gentle learning curve — 18 tutorial levels introduce one rule at a time, building from simple one-step proofs to multi-step chains

  • Deep complexity — later levels feature nested quantifiers, multi-variable domains, and proofs requiring 10+ derivation steps

  • Intuitive drag-and-drop interface — slot propositions into rules, see the result, and build your proof step by step

  • Par system — every level has an optimal solution length; can you find the shortest proof?

  • No time pressure — think as long as you need; every proof waits for you

  • 60+ Steam achievements — milestones, rule mastery challenges, and hidden achievements for completionists

  • Cloud saves — pick up where you left off on any machine

Opplysning om AI-generert innhold

Utviklerne beskriver hvordan spillet bruker AI-generert innhold slik:

I used standard agentic tools for things like translation and making simple icons. Some images/effects were created with Stable Diffusion XL Base 1.0 (sd_xl_base_1.0.safetensors). The background music I iterated on with a local ACE-Step setup.

Systemkrav

Windows
macOS
SteamOS + Linux
    Minimum:
    • Krever en 64-biters prosessor og operativsystem
    • OS: Windows 10
    • Prosessor: 1.6 GHz dual-core
    • Minne: 4 GB RAM
    • Grafikk: Integrated graphics
    • DirectX: Versjon 11
    • Lagring: 500 MB tilgjengelig plass
    • Lydkort: Any
    Anbefalt:
    • Krever en 64-biters prosessor og operativsystem
    • OS: Windows 10
    • Prosessor: 2.0 GHz dual-core
    • Minne: 4 GB RAM
    • Grafikk: Integrated graphics
    • DirectX: Versjon 11
    • Lagring: 500 MB tilgjengelig plass
    • Lydkort: Any
    Minimum:
    • OS: macOS 10.15 (Catalina)
    • Prosessor: Intel Core M
    • Minne: 4 GB RAM
    • Grafikk: Integrated graphics
    • Lagring: 500 MB tilgjengelig plass
    • Lydkort: Any
    Anbefalt:
    • OS: macOS 12 (Monterey)
    • Prosessor: Intel Core M
    • Minne: 4 GB RAM
    • Grafikk: Integrated graphics
    • Lagring: 500 MB tilgjengelig plass
    • Lydkort: Any
    Minimum:
    • OS: Ubuntu 20.04+ / SteamOS 3.0
    • Prosessor: 1.6 GHz dual-core
    • Minne: 4 GB RAM
    • Grafikk: Integrated graphics
    • Lagring: 500 MB tilgjengelig plass
    • Lydkort: Any
    Anbefalt:
    • OS: Ubuntu 22.04+ / SteamOS 3.0
    • Prosessor: 2.0 GHz dual-core
    • Minne: 4 GB RAM
    • Grafikk: Integrated graphics
    • Lagring: 500 MB tilgjengelig plass
    • Lydkort: Any
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