Everything that haunts
this domain.

A heist in the dark: thieves see only what their flashlight cone reveals, steal the loot, and extract before the clock runs out — but the flashlight also gives them away. The warden watches everything through CCTV and spends a power budget to fight back: lock doors, kill lights, swivel cameras, and launch drones. Private rooms via share codes, and an after-action report scores every operative.

• Asymmetric roles: top-down flashlight stealth for thieves, a full-building security terminal for the warden
• Warden powers on an energy budget: door locks, blackouts, camera swivels, freehand-drawn drone patrols
• Thieves can sabotage cameras — a loud, risky channel that permanently blinds one
• Server-authoritative TypeScript simulation over WebSockets, with per-role visibility so nobody can peek

Wander a pixel-art festival campsite rendered with Phaser. Every tent, van and prop is placed by hand; sit down at the laptop (press E) to trigger the story beats.

Built with Phaser 3 and Vite, bundled small enough to boot instantly in the browser.

While Rockstar takes their time, this ships today: a shared low-poly city where everyone on the page runs around, shoots, and fights over the same pool of four-seat cars. Walk up to any vehicle, press E, and it’s yours — until someone shoots you out of it.

• Third-person on-foot movement with mouse aim, plus drivable multi-seat cars
• Live multiplayer through Colyseus rooms with an authoritative server
• Server-side physics via Rapier 3D; clients just render and send inputs
• Three.js city with day/night lighting, kill feed, and K/D scoreboard

A 2-D wind tunnel for mountain weather: a smoke rake streams over terrain you sketch directly onto the sky, revealing lee waves, rotors, and wake turbulence. Sunlit slopes heat up and launch thermals that condense into clouds at the cloudbase — drag the sun across the sky and the weather follows.

• Draw and erase ridges live with a terrain pen; the flow reacts instantly
• Tunable wind speed, turbulence, solar heating, thermal power, and cloudbase
• Stable-fluids solver on WebGL2: semi-Lagrangian advection, Jacobi pressure projection, vorticity confinement
• The whole app is one hand-written HTML file — no framework, no build step

Mental-math drills wearing an arcade costume. Equations descend from the top of the screen and you type the answer before they overrun the cannon.

• Classic, Sprint, Zen and Focus modes
• A boss every fifth level; combo multipliers up to 5×
• Powerups: extra life, slow-mo, board-clear

A Paperclips-style incremental set in the Media Concept universe. Buy ink, set your prices and out-sell Basti, Uli and Andi one order at a time.

• React front-end on a self-hosted Convex backend
• Real-time multiplayer lobbies
• An economy that slowly spirals out of control

Micro Machines by way of the breakfast table. Drift top-down races across pool tables, kitchen counters and garden paths — solo against the CPU or online with up to four.

• CPU tournaments and online multiplayer (2–4)
• Hand-drawn household tracks
• Written in TypeScript

A from-scratch Minecraft in the browser: an authoritative Node server streaming chunks to a Three.js / WebGL2 client. Survival, redstone, mobs, the Nether and the End are all in.

• Server-authoritative world with client-side prediction
• Greedy-meshed chunks — hundreds of thousands of triangles a frame
• Multiplayer out of the box

A 1v1 real-time strategy duel: paint territory organically across the map, capture fixed cities, and manage an economy — while your opponent’s troop counts stay hidden, and so do yours. Challenge another connected commander live or drill against the bot.

• Live 1v1 over WebSockets, plus a practice AI
• Seven theatres: real-world coastlines (World, Mediterranean, Baltic, …) or fresh procedural continents
• Amphibious armies, supply-line encirclement, and rockets to blast holes in the front
• Phaser 3 client, authoritative TypeScript simulation on the server

A second run at browser Minecraft, this time with nothing under it: no Three.js, just a hand-written WebGL2 renderer and its own GLSL, shipped in a ~150 KB bundle that talks to an authoritative server over a WebSocket.

• Raw WebGL2 rendering, four web workers meshing chunks in the background
• Server-authoritative multiplayer — shared seed, shared world, live player list
• Survival and creative: 2×2 crafting, furnaces, chests, redstone, torches, mobs
• Biomes from desert and savanna to taiga and jungle, day/night, and a nether
• F3 says ~120 fps at render distance 14 with 1.8M triangles on screen

Every Project Euler problem in scope, solved, verified and timed. Each problem gets its own solver, a reference answer, and a CI harness that re-runs the whole set to keep the solutions honest.

• 522 problems, 100% solved and verified
• Per-problem runtime tracking
• A CI gate that fails on any regression

Real-time strategy in space: twelve empires expand across a procedurally generated galaxy, and the first to hold 60% wins. Balance troops against workers, bank gold, and decide how much of your army each attack commits.

• Free-for-all or two-team mode, with map presets (Pangaea, Continents, Twin Titans, Nebula Expanse, Shattered Belt) and up to 11 bot empires
• Diplomacy that matters: alliance proposals, betrayals, and an emote bar for gloating
• Build habitats, shield generators, spaceports, and missile silos
• Escalation ladder from warships and invasion fleets up to atom, hydrogen, and MIRV strikes

A love letter to Celeste, built from nothing. There is no build step and there are no assets — every sprite is drawn to a <canvas> at runtime and every sound is synthesized live through the Web Audio API.

• Hand-tuned dash and wall-jump movement
• Procedural chiptune, zero audio downloads
• Keyboard or gamepad

The page you’re looking at. An Astro-built index of everything running on the domain, so no experiment gets lost in the dark. Each project lives as a Markdown file; the ghost up top is hand-animated SVG.

A live BlueMap render of the survival world. Fly the whole map in 3D straight from the browser — no client, no download — and watch it update as the world changes.

Not a clone — the real thing. A vanilla-compatible Java Minecraft server running on the same box as everything else here. Point your launcher at glowingghost.de and join.

The backstage of the paperclip factory — the self-hosted Convex deployment that powers MCSimulator. There’s nothing to see without credentials; basic auth keeps the door shut.