Idle Spiral

Math-based idle game built around growing and battling spirals

Idle System, Inc., Yayu, Sumito.O · Published by Idle System, Inc. · Released Apr 30, 2022

Casual Indie Simulation Strategy Free To Play

Reviews: Mostly Positive; 79% of 2,083
Recent reviews: Mixed; 64% of 14 in 30 days
Players: 218; daily peak, Oct 28, 2026
Steam Deck: Playable
Last update on Steam: 1 week ago; Oct 20, 2026
Minimum PC: DX10; 1 GB RAM · 1 GB disk; Full requirements

What is Idle Spiral?

This free-to-play incremental game centers on a spiral that grows as you buy upgrades. You reset much of your progress to advance faster, and fight other spirals by choosing enemies and rewards. Challenges set specific goals under penalties, restrictions, or changed rules.

For you if...

+you like abstract visuals and math-themed incremental systems

Not for you if...

−you want quick progress without long stretches of grinding

What players say

79% of 2,083 reviews are positive · 64% of 14 in the last 30 days

Positive comments highlight progression choices and suitability for background play. Recent reviewers criticize a UI redesign that makes some prestige controls inaccessible, along with updates that break basic functions. Players also report unclear explanations and inconsistent calculations.

Screenshots and trailer

Idle Spiral system requirements

Minimum: DX10, 1 GB RAM, 1 GB of disk space.

As published by the developer.

Can my PC run Idle Spiral?

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Minimum

OS: Windows Vista
Processor: PU Penguin 4 or more
Graphics: DX10
Memory: 1 GB RAM
Storage: 1 GB available space

Does Idle Spiral have co-op or multiplayer?

No: single-player only, no multiplayer modes declared.

Single-player

Does Idle Spiral run on Steam Deck?

Playable Playable: it runs on Steam Deck with some adjustments.

Sometimes shows mouse, keyboard or non-Deck controller icons
Some text entry requires manually opening the on-screen keyboard
Some in-game text is small and may be hard to read
Native resolution not supported
All functionality is accessible with the default controller configuration
Default graphics settings perform well on Steam Deck

PC version details

DRM: None declared on Steam
Controller: Keyboard and mouse
Platforms: Windows, macOS
Achievements: 32
Steam features: Cloud saves, Family Sharing
Languages: Text only: English, Japanese, French, German, Spanish - Spain, Arabic, Portuguese - Portugal, Russian, Simplified Chinese, Korean.

Does Idle Spiral use AI-generated content?

No AI-generated content is disclosed on the game's Steam page.

Self-reported by the developer under Steam rules: it covers AI content that ships in the game, not tools used to make it. Steam page checked on Oct 27, 2026. How to filter AI games on Steam