ULTRA EDITION
A Windows 2000 desktop, with a real multiplayer Deathmatch shooter, in your browser.

Everything on this site is real: the IRC server, the scores, the painting gallery, the Deathmatch raycaster. Nothing is mocked.

  • 📡IRC chat with actual NickServ-style handle reservation
  • 👹Multiplayer Deathmatch — server-authoritative raycaster, up to 16 players per arena
  • 🛡️Passkey-verified accounts (Touch ID / Windows Hello) — no passwords, no email, no tracking
  • 🏆Leaderboards across 10+ mini-games (Snake, Blocks, FreeCell, Pinball, Pipes…)
  • 🎨Paint gallery — draw, publish, browse what others made
  • 🤖In-browser AI — a 77M-param model runs fully client-side
Fan tribute · not affiliated with or endorsed by any mentioned product · all trademarks belong to their owners · Impressum · Privacy

⚠ CONNECTION FAILED

PAT-OS 2000 could not reach the server. The desktop can't start because settings, the guestbook, IRC, Deathmatch and the leaderboards all depend on the backend.

STATUS: unreachable

Possible causes: the server isn't running, a network issue, or a proxy blocks /api/health.

Auto-retrying every 5s...
PAT-OS 2000
Fan tribute · not affiliated with or endorsed by any mentioned product · all trademarks belong to their owners · Impressum · Privacy
PAT-OS 2000
An error has occurred:
COFFEE_LEVEL_TOO_LOW (0x00000C0FFEE)

* Click to continue.
█
PAT-OS 2000

A fatal exception 0xDEAD0000 (SERVER_UNREACHABLE) has occurred
at 0028:C0FFEE42 in VXD BACKEND(01).

The connection to the PAT-OS server has been lost. The system
cannot continue without the backend, because high scores, IRC
chat, leaderboards, Deathmatch and all settings live on the server.

Reason: unknown

* Wait for the server to come back online.
* Press F5 or click below to try again.
* Press CTRL+ALT+DEL... uh, no, that does nothing here.



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Info✕
💬
⚠️Warning
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Text
📱 Touch: Tap = Click · Long press = Right click
★★★ PAT-OS 2000 ULTRA EDITION ★★★ — TIP: TYPE THE KONAMI CODE ↑↑↓↓←→←→BA — 🚧 FOREVER UNDER CONSTRUCTION 🚧 — ★★★
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🦀
🧠
⚡
🕹️
☕
🌀
💾
🕹️
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👤about_pat.exe
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🧑‍💻
Name: Pat
Loc: Germany 🇩🇪
Class: Coder/Gamer
Coffee: ████████░░ 80%
Status: ● Online
Hi! I'm Pat — coder and gamer. Neural networks in the browser, local LLMs on a Mac Mini M4 Pro. 🕹️
Zion Operative — PyyVector Server
📊skills.dat
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💾C:\projects\
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◆ PAT-OS 2000 ● ACTIVE
Retro-Windows desktop simulation — running the very thing you're looking at. Node + SQLite, real IRC and arena-shooter multiplayer.
JSNodeWebSockets
◆ NeuroForge ● ACTIVE
In-browser neural-network studio built on TensorFlow.js.
JSTF.js
◆ LLM-Lab ● ACTIVE
WebLLM, WebGPU inference, benchmarks on a Mac Mini M4 Pro.
WebGPULLM
3 active projects
🤖AI Assistant
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📋Reports Inbox (Oper)
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🛡️ Unban:
—Oper-only🔓 Logout💣 Revoke all
🔍 User history✕
…
…
🚩 Report content✕
Reporting —
Reason:
🪪My Profile
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🏅Achievements
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—PAT-OS 2000
📈Server Metrics
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Loading...Polling · oper-only🔓 Logout💣 Revoke all
📖README.txt
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PAT-OS 2000 ULTRAManual
🏆Leaderboards
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Name:
💾 Global leaderboard — stored on the server
📝guestbook.cgi
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💾 Saved on the server
🖥️COMMAND.COM
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C:\PAT>
🎵Media Player
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cyberspace.mid
00:00 / 03:42
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⏹
⏭
💬MSN — ClippyBot
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📎
ClippyBot
Online
ClippyBot: Hi! Try "nudge", "joke" or "help" 😏
💣Minesweeper
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🎨Paint
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NewSave🖼️ Publish
🔢Calculator
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0
🧱Blocks
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SCORE
0
LEVEL
1
NEXT
←→ Move
↑ Rotate
↓ Drop
Space Hard
🐍Snake
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Score: 0 | Hi: 0
Arrow keys to steer
🃏Solitaire
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Click the stock to draw · Click cards to move
Moves: 0
🖼️Wallpaper
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Custom wallpaper:
🌐 COMMUNITY
📋Task Manager
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CPU:
23%
📄Notepad — notes.txt
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💾 Auto-saved
⏰Clock
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💬IRC — #patos
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📡 #patos — Welcome to the PAT-OS IRC | /help for commands
🔧Defragmenter
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Ready
💻System Properties
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General
Hardware
Performance
📁Explorer
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📍
🗝️Registry Editor
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NameTypeData
📥DCC Transfers
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🎸P2P Share
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SongArtistSizeSpeed
🌻ICQ
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🌻 ICQ 2000b
🏃AIM
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🏃 AIM Buddy List
💿CD Burner Pro
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👹DEATHMATCH
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SAY:
♥ 100💀 0👥 0
WASD=Move ←→=Turn — SPACE=Shoot — T=Chat
♠️FreeCell
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📞Dial-Up Networking
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✕Hi!
📎
🪟Start
🔊🌐👥 …
PAT-OS 2000
🎮 GAMES
👹Deathmatch
🐍Snake
🧱Blocks
💣Minesweeper
🃏Solitaire
♠️FreeCell
👥 SOCIAL
📡IRC Chat
📝Guestbook
🪪My Profile
🏆Leaderboards
🏅Achievements
👤About Me
📊Skills
🎨 CREATE
🎨Paint
🖼️Paint Gallery
📄Notepad
🖼️Wallpaper
🔧 TOOLS
🖥️Terminal
🤖AI Assistant
🔢Calculator
⏰Clock
📈Server Metrics
📋Reports (Oper)
📖README
🌙Screensaver
📀 NOSTALGIA
💬MSN Chat
🌻ICQ
🏃AIM
🎵Media Player
🎸P2P Share
📥DCC Transfer
💿CD Burner
🔧Defragmenter
💻System Properties
📁Explorer
🗝️RegEdit
📋Task Manager
📞Dial-Up
⏻Shut down...