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Isyium

Game overview

Isyium

Isyium is a unique combination of simulation, strategy and casual arcade (if played in that spirit) with an abridged story mode. Set in an orbital accelerator many years in the future after Earth's untimely bio destruction, you pilot a futuristic - if not altogether rusted and clunky apparatus - called the Spinnercast Module, capable of...

Simulation
Last tracked players
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24-hour change
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Steam reviews
55.6% positive
9 reviews · via SteamSpy

Delayed observation · last tracked . Values marked unavailable are not estimated.

About this game Read the full description
Features
  • Over 40 original compositions - sci-fi electro tunes to immerse you into this altered world. (runtime 100+ mins)
  • Easy to learn - just hit a button when the atoms collide!
  • Deeper strategy with improved skill and higher competencies.
  • Overlay systems - Easers to ease targeting of atomic hits (when earned), a Sight for aligning hits, a 'Resist-Vaporizing' meter to impede a vaporizing event, a Qenoscope to vanquish Antimatter Radicals, internal lighting options to favor tunnel imagery, options for spoken voice and/or continuous music with shuffle option by switch.

About
Isyium is a unique combination of simulation, strategy and casual arcade (if played in that spirit) with an abridged story mode.

Set in an orbital accelerator many years in the future after Earth's untimely bio destruction, you pilot a futuristic - if not altogether rusted and clunky apparatus - called the Spinnercast Module, capable of near light speed as it races through the loop.

Your goal is to create Isyium - a theoretical particle that reverses the effects of Proxectron - the cause of Earth's disaster. (Proxectron was similarly created in an orbital accelerator).

Discovering a casebook detailing the process of defining Isyium, you now run something called a simulant, building particles and logging codes. When eight codes have been defined there is a brief puzzle to solve before uploading them, completing your mission.

Gameplay
From a viewport you interact with particles to form new entities. This is achieved by smashing two atoms then combining their offspring particles to color the core, which eject to one of eight positions in the outer group. At run completion there is a presentation of volumes. Once all colors have been completed, a competency is achieved, resulting in an auto-save and a code written to the casebook's cover.

Strategy is required for mixing colors, maintaining the central core's mass, destroying Antimatter Radicals - which can damage your module and end your run early, along with using Discontinuous Anomalies to increase atomic velocities (and improve the mass of resulting particles) or contiguous atomic hits to increase velocity as well as earn Easer points and resist Vaporizing Rays.

Balance your particle combining choices with elimination choices - either make a large amount of particles with greater mass (along with their orbiting satellites) to define harder to achieve, larger-sized colors sooner, or keep runs lean and eliminate threats early, requiring more runs overall.

To assist, your module contains numerous dials and switches that link to tools, as described in the manual.

Player activity

Concurrent players over the last 48 hours.

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System requirements Windows

Windows

Minimum

Minimum:
  • OS: 7, 8, 10
  • Processor: Better than 2GHz for smooth multi-channel sound and input process at 60fps
  • Memory: 256 MB RAM
  • Graphics: DirectX compatible card, 1GB RAM
  • DirectX: Version 9.0c
  • Storage: 230 MB available space
  • Sound Card: Capable of rendering stereo, 5.1 channel

Recommended

Recommended:
  • OS: 10
  • Processor: Better than 2GHz for smooth multi-channel sound and input process at 60fps
  • Memory: 256 MB RAM
  • Graphics: DirectX compatible card, 1GB RAM
  • DirectX: Version 11
  • Storage: 230 MB available space
  • Sound Card: Capable of rendering stereo, 5.1 channel
Game details Languages, features & support
Publisher
Glenn Main
Brazilian rating
l
Steam Germany rating
0
Achievements
14
Controller support
full
Features
Single-player, Steam Achievements, Full controller support, Steam Trading Cards, Family Sharing
Languages
English*
*languages with full audio support
Compatibility & accessibility Steam Deck, controllers & access features

Can I Play This?

Steam declarations and Valve's Steam Deck compatibility result. Missing data is shown as unknown, never unsupported.

Sources fresh
Native Steam builds
Windows: unknown
macOS: unknown
Linux: unknown
Steam Deck
unknown
Valve compatibility test
Input
Controller support: unknown
Structured language support (1)
LanguageInterfaceFull audioSubtitles
EnglishYesYesNo
Steam store page fresh · checked 2026-10-10 PCGamingWiki technical notes External link only; SteamIQHQ does not ingest PCGamingWiki content.
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Game Insights

Buy Verdict

Watch — $0.99.

Decent deal at 0% off, but might drop further. Watch for better opportunities.

▲ ~23 days until next sale

Value Score

Great Value — 85th percentile.

Price-to-player ratio ranks in the 85th percentile. Priced as Budget at $0.99.

▲ Budget pricing tier

Genre Benchmarks

Player Count Top 23%
Value Ratio Top 15%

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Developer Analytics

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Frequently Asked Questions

Is Isyium worth buying right now?
Watch — $0.99. Decent deal at 0% off, but might drop further. Watch for better opportunities.
When does Isyium go on sale?
Decent deal at 0% off, but might drop further. Watch for better opportunities.
Is Isyium free to play?
Isyium costs $0.99 on Steam.
What genre is Isyium?
Isyium is a Simulation game.
Who developed Isyium?
Isyium was developed by Glenn Main and published by Glenn Main.
What platforms does Isyium support?
Available on Steam for Windows.

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