Game Theory Playground
Twenty interactive experiments in cooperation, negotiation, information, voting, and incentives. Make a choice, inspect the results, and change the rules.
The Public Workbench
Tools for text, code, images, maps, and small experiments.
Find a tool. Open it. Work in your browser.
A new home for the collection. Saved drafts, settings, and API keys from tedt.org do not transfer to this domain. Traveller and separately hosted tools open at their existing addresses.
Twenty interactive experiments in cooperation, negotiation, information, voting, and incentives. Make a choice, inspect the results, and change the rules.
Fullscreen palette workbench with pan/zoom, contrast matrix, token export, WebMCP tools, semantic roles, audits, previews, and source image extraction.
Client-side AI prompt workbench with system-prompt history, streaming output, markdown rendering, and copy-ready responses.
A scriptable scratchpad for developers. 93 built-in text transformations — encoding, formatting, hashing, case conversion, and more — all in the browser.
Create blue-biased gradient image cards with layered patterns, blend modes, film grain, and vignette effects.
Browser-based source line analysis with language breakdown and rough Basic COCOMO effort/cost estimates.
Client-side image editor, JPEG optimization, and SVG utilities (crop/resize/export, SVG sandbox, and embed helpers).
Password entropy + time-to-crack estimator with common-password checks.
Paint a photo in oil, watercolor, pointillist, gouache, soft pastel, or palette knife style, then download a textured PNG. All image processing stays in your browser.
Inspect public Bluesky and Mastodon accounts for reply timing, repeated text, posting volume, and other observable patterns, with visible thresholds and linked evidence.
Read mathematical symbols with spoken translations, small number examples, and explanations that start with junior-high pre-algebra.
Convert formatted clipboard or file content into safe Markdown, edit complete documents, validate YAML front matter, and preview or export the result locally.
Interactive character sheet for Mongoose Traveller 2E with dice, multi-character save/load, and export.
Client-side OCR for PDFs and images using local PDF.js and Tesseract runtimes, with browser-cached language downloads, per-page output, and a combined full-document view.
Interactive Mandelbrot explorer with smooth pan and zoom, GPU rendering, and double-float emulation for deeper navigation than a typical WebGL fractal demo.
A client-side countdown timer and stopwatch with productivity presets, queue-based focus cycles, theme switching, and multiple number-display styles.
Client-side QR code generator. Paste text or a URL and get a clean, scannable QR code.
Printable/scrollable map that shows a 275 foot increase in sea level.
A lightweight TTRPG wilderness map stream inspired by DMG Appendix B.
Hourly board game night ideas generated from procedural tables.
Generative text web app with 100+ random tables for brainstorming and storytelling.
Procedurally generated star constellations (random-constellations.tedt.org).
Creates a temporary IPFS node in your browser and demos fetching a file via CID.
Embeddable Mastodon timelines (profile/hashtag/local) using a client-side widget.
Interactive ship sheet for Mongoose Traveller 2E with save/load and export/import.
Seeded fractal world map generator with palettes, projections, and erosion.
Standalone test page for the multi-scale hex overlay canvas (pan/zoom + legend).
Generate classic BD&D-style adventurers for listings or character-sheet prep.
Generate OSRIC-style adventurers with listing or sheet-style output.
Generate a compact adventure area with encounters, traps, atmosphere, and loot controls for multiple game systems.
Generate Labyrinth Lord adventurers with listing or sheet-style output.
Build custom Labyrinth Lord spell listings with flexible sorting, filtering, and optional spell-reference details.
Pre-roll Tunnels Trolls combat dice sets across a configurable range for faster play at the table.
Build a dungeon or cavern layout with source-tile mix, room indexing, and adventure content generation controls.
Create a configurable dungeon delve with room-by-room encounters, traps, loot, and atmosphere hints.
Generate random cavernous, dungeon, or side-view maps from curated geomorph tile sources.
Create encounter sets based on game system, party strength, selected enemy, and optional treasure.
Select one or more categories and generate a batch of names for each category.
Generate a random Tunnels Trolls settlement with configurable map size, institutions, stock levels, and resident kindred.
Generate fantasy settlements with citizens, institutions, and power structure.
Generate fantasy settlements with race-aware population and civic institutions.
Generate exodus or crashed spaceships for fantasy parties with configurable encounter and loot behavior.
Kintsugi Currents — Generative Art Viewer. A browser-based experiment from the tools collection.
Generate sorted monster listings by name/level, list/terrain grouping, and table/stat-block appearance.
Generate post-apocalyptic buildings, ruined cities, and derelict ships with configurable encounters, traps, contents, and loot.
A themed onboarding screen for a social network built for Dungeons and Dragons players.
Generate random fantasy coin piles by game system and target gold value range.
Generate list-oriented data snippets for containers, decorations, traps, and treasure sets across fantasy, post-apocalyptic, sci-fi, and T T variants.
Create batches of treasure sets with valuables/relic weighting, list mode, and system-specific options.
Generate random abandoned city maps from ruined-city geomorph tiles with optional keyed numbering.
Create building and corpse scavenging item lists for post-apocalyptic and horror play.
Generate random robots and mutants/aliens for sci-fi and post-apocalyptic campaigns.
Generate random building, spaceship, or exodus-ship maps with optional area numbering and color mode.
Generate random city, keep, or village layouts with optional keyed building numbering.
Generate random sewer networks with configurable room density and optional keyed area numbering.
Simple Toot Embed. A browser-based experiment from the tools collection.
Build custom OSRIC / Advanced Edition fantasy spell listings with sorting, filters, and detailed spell cards.
Generate random suburb map layouts from geomorph tiles at your chosen dimensions.
Generate reference tables for encounters, traps, treasure, and dungeon-support tools for fast play.
','').replace(' ','').indexOf('@') == 0) { // don't show posts that look like replies either continue; } else { // no special code needed } var instanceName = arr.url.replaceAll('http://','').replaceAll('https://','').split('/')[0]; // var displayToot; // if (
','').replace(' ','').indexOf('@') == 0) { // don't show posts that look like replies either continue; } else { // no special code needed } var instanceName = arr.url.replaceAll('http://','').replaceAll('https://','').split('/')[0]; // var displayToot; // if (
Toot Thread Embed. A browser-based experiment from the tools collection.
Toot Thread Embed. A browser-based experiment from the tools collection.
Generate random encounter table entries by game, level, terrain, and source options.
Generate one detailed world-hex adventure region with landmarks, exploration sites, hazards, and encounter-ready content.
Generate a randomized world or underworld hex map with configurable style, climate, borders, and map information.
Create random zombie groups for survival-horror play, including Necropalyx and generic modes.
An unfinished name-generator project: a preserved reference list and extraction notes. The referenced generators remain on their original websites.
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