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Play Microcosm (US edition · English) Online
Microcosm (USA)
Play Microcosm online. Pilot a microscopic craft through a body to stop a hostile control probe. Read the starting guide and original controls.
Browser play
Sega CD / Mega-CD — EmulatorJS controls
Default Player 1 keyboard mapping. Change keys in Controller Settings.
| Console button | Keyboard |
|---|---|
| ↑ / ↓ / ← / → | ↑ / ↓ / ← / → |
| A / B / C | S / X / Z |
| X / Y / Z | Q / A / E |
| START / MODE | Enter / V |
Open Controller Settings to configure your keyboard or gamepad. Touch controls are available on mobile.
How to Play Microcosm
Quick start
Start the mission, listen to the medical briefing and practise moving the craft in the first passage. Fire at approaching threats while keeping room to dodge.
Controls
D-pad: move; A: fire; B: change weapon; C: bomb; Start: pause/resume.
Microcosm — About this game
A rival corporation has injected a probe into Tiron Korsby's bloodstream, threatening to reach his brain and take control. You enter the body in a tiny craft to intercept it, travelling through vessels and organs in a shooting adventure. Pre-rendered internal scenery creates the route while enemy attacks demand movement and accurate fire. The setting changes the appearance of hazards without turning the body into a freely explorable medical simulation. Stay alert to incoming threats and use the available weapons to survive long enough to find the hostile probe.
Microcosm Game manuals
Cheats
No cheats have been added for this edition.
Player verification and sources
Browser play was reviewed before this edition was published in the catalogue. The date below is the catalogue publication date, not the game’s original release date.
- Browser test and catalogue publication date
- Browsers and devices
- PC: Chrome, Edge and Firefox. Mobile: Chrome on Android and Safari on iPhone and iPad.
- Player engine and core
- EmulatorJS 4.3.0-pre · segaCD
- Tested by
- rwEmulator
Sources and editorial basis
rwEmulator reviews edition metadata, release information, game manuals and first-hand browser-play notes. Available manuals are linked below; the editorial policy explains how facts are checked and corrections are handled.