Pentium 133 MHz Virus Simulator Win 95

PENTIUM™ 133 MHz VIRUS SIMULATOR · WIN 95

Overview

A dark-comedy simulation game where you own a beige Pentium 133 MHz computer running Windows 95 on a 15" CRT monitor in a dark room. The twist? You also own 576 virus strains, and you deliberately infect your own machine to watch it descend into chaos. It's 100% offline—no install, no server, no network, no saves—just pure retro PC destruction.

The Premise

This is a fictional malware laboratory set in 1996. You boot up an authentic Windows 95 environment and systematically destroy it by running viruses from a massive catalog. Each virus has unique visual effects, behaviors, and lethality levels. The game ends when your system integrity hits zero and the machine blue-screens—but you can always reboot and continue the carnage.

Core Gameplay

The Laboratory (VIRUS.EXE)

Your primary tool is the virus laboratory application where you can:

Browse 576 deterministically generated virus strains across 25 families

Search viruses by name, family, payload type, or signature

Read detailed information: lethality (1-10), chaos rating, origin, year, hex signature, and flavor text

INFECT - Execute a single strain to watch it corrupt your system

CHAOS - Release 5 random viruses simultaneously for maximum destruction

Each virus combines 2-5 "payload primitives" from a pool of 76+ unique effects

The Windows 95 Environment

A fully functional simulated OS running inside the CRT, including:

My Computer - Browse drives and watch files get devoured

Notepad - Live event log documenting the machine's decline

MS-DOS Prompt - Working command line with commands like DIR, FORMAT C:, DELTREE C:\WINDOWS, VIRUS, CHAOS, REBOOT

System Properties - Monitor RAM, CPU temperature, and system integrity

Error dialogs - 15 authentic Windows 95 error messages

Full window manager - Drag, minimize, focus, z-order management

Desktop icons, taskbar, Start menu, context menus

The 576 Virus Strains

Payload Primitives (76+ effects across categories):

Overlay Effects (36 types):

Glyph Rain / Character Cascade - Matrix-style falling characters

Hex Dump - Endless memory dumps scrolling up

Ransom Notice - Full-screen demand for money

Format C: Progress Bar - Watch your disk "format"

Blue Screen of Death - Multiple authentic variants

Kernel Panic - Register dumps and ring-0 meltdown

Dead Pixel Plague - Pixels die and spread permanently

Phosphor Burn-In - Ghost images burned into the CRT

Haunted Photographs - Procedural faces that fade in and stare

Hypno Spiral - Rotating spiral with hypnotic text

Watching Eyes - Eyes that follow your mouse

News Ticker - Rolling headlines of bad news

And many more: CAPTCHAS, plasma fields, ink drips, bouncing boxes, vaporwave sunsets...

Picture Destruction (17 types):

Screen melting, macroblock chaos, datamosh

Torn scanlines, lost vertical hold

Tube squeeze, jello ripple, mirror tiling

Infinite recursion, pixel sorting, lens distortion

Flyback failure (picture collapses to a line)

Windows 95 Harm (17 types):

Dialog storms, icon theft, taskbar rot

Clock warp, RAM lies, drive devouring

Thermal runaway, CPU overheating

Input betrayal (cursor drifts, clicks misbehave)

Keyboard scrambling, wallpaper roulette

Window droop, reboot loops, false lockouts

Magic smoke from the tower

Audio Effects (6 types):

Musical motifs, screams, dial-up modem sounds

Klaxons, heartbeat, disk thrashing

Virus Families (25 types)

Each virus belongs to a family with distinct characteristics, palettes, and behaviors. Examples include file infectors, boot sector viruses, macro viruses, worms, trojans, and more exotic fictional variants.

The Authentic CRT Experience

Post-Processing Pipeline:

WebGL-powered barrel distortion, aperture-grille mask, scanlines

15-tap bloom with horizontal phosphor streak

Chromatic aberration at screen edges

Phosphor persistence (previous frames smear)

Degauss ripple, flicker, thermal noise, vignette

Power-down animation with vertical collapse to a bright dot

The Room:

Everything drawn procedurally (no image files):

Monitor - Aged beige plastic with scratches, yellowing, vents, screws, brand logo, degauss/power buttons, glass reflections, dust

Tower - Drive bays, floppy slot, Pentium badge, Turbo button with live LCD (133↔66 MHz), spinning fan, heat shimmer, smoke when overheating

Keyboard - Full 101-key layout with worn legends and grime

Desk - Wood grain, coffee mug labeled "C:>", floppy disk labeled "TAXES 96", jewel case

Dynamic lighting - The CRT's screen color illuminates the bezel, desk, and tower

Survival Mechanics

System Integrity:

Starts at 100%, drains as viruses execute

Each virus has a lethality rating (1-10) determining damage

At 0%, the machine blue-screens—you must reboot

Reboots clear running payloads but preserve permanent damage

Permanent Damage:

Some effects persist even after reboots:

Dead pixels spread and never heal

Phosphor burn-in ghosts on screen

Cracked CRT tube

Increased fan noise, heat, and smoke

Only a full power-down clears permanent damage

Safe Mode:

Press F8 during boot to access Safe Mode

Halves the strength of all payloads

Makes survival easier for experimenting

Controls

Input Action

Left Click Interact with CRT (input compensates for tube warping)

Right Click Desktop context menu

Drag Move windows by title bar

Mouse Wheel Scroll lists

Keyboard Type in Notepad, DOS prompt, BIOS

Esc / Start Game menu (resume, options, damage report, kill all payloads)

Right Ctrl PANIC KEY - Instantly kills all payloads and closes all windows

On-screen STOP Same as Right Ctrl, always visible

Tower Buttons Power, Reset, Turbo (133↔66 MHz), Degauss, Floppy eject, CD tray

Advanced Features

BIOS Setup (DEL during POST):

Adjust turbo speed, boot sequence, virus warning (always disabled)

Fan speed control, degauss settings

MS-DOS Commands:

Working commands include: HELP, DIR, MEM, VER, VOL, TREE, ECHO, TIME, DATE, ATTRIB, CHKDSK, FORMAT C:, DELTREE C:\WINDOWS, VIRUS, CHAOS, REBOOT, EXIT, CLS

Turbo Button:

Actually switches CPU between 133 MHz and 66 MHz, affecting game speed

Degauss Button:

Makes the CRT picture wobble authentically

Audio:

All sounds synthesized with Web Audio (no samples):

60Hz fan hum that rises with CPU temperature

Hard drive seeks, floppy grind, CD tray

PC speaker POST beep

Family-specific musical motifs

Screams, dial-up handshakes, klaxons, static

Optional 15.7 kHz CRT flyback whine (older players can hear it)

The Philosophy

This is not a traditional game with goals or progression—it's a sandbox for digital destruction. The joy comes from:

Discovery - Finding new virus combinations and effects

Chaos experimentation - Seeing how many strains you can survive

Nostalgia - Reliving the aesthetic and quirks of 1990s computing

Dark humor - Deliberately ruining a machine that was always doomed

Every virus is fictional and completely harmless. Nothing touches your real computer. It's one HTML page pretending to be 1996, where malware is a firework show instead of a crime.

Technical Achievement:

Single HTML file, pure JavaScript (no build tools, no modules)

Works offline from file://

100% procedurally generated graphics (room, CRT effects, virus behaviors)

Deterministic virus generation (same strain always behaves identically)

Authentic Windows 95 simulation with working window manager

Full WebGL post-processing pipeline with 2D canvas fallback

happystoner5420 Games · 2026