Cosmos
Mini Galaxy
Explore a browser-only seeded observatory: a compact galaxy with rough stellar populations, planet architectures, astrobiology-inspired lenses, and explicit uncertainty about life, moons, and featureless worlds.
System Generator
Collapse a seed into a single stellar system — star, planets, moons, and belts with real-ish physics — then watch it run as a stable N-body orbital solution (moons averaged into their planet, debris clustered into noisy particles, under 500 tracked bodies).
World Generator
Stand in a world's own orbit. Any selected planet or moon is centred and spinnable; a planet sees its star, a moon-world sees its host scaled by angular diameter with the sun a distant disk. True-colour rendering, local moon motion, and the collapsed physical + detection data for the body.
Fantasy
Character Forge
Build a 5e-compatible level 1 character from open SRD content — abilities, species, class, background, and spells — then print the sheet. Choices autosave locally.
DM Toolkit
Console-style DM dashboard — 334 SRD creatures with stat blocks, context-aware NPC generator, dice roller with advantage/disadvantage, environment & weather, and a combat initiative tracker.
Zork Terminal
Play Zork I–III in a browser terminal — the interpreter and story files run client-side, autosave is local. jump in: I · II · III
Command Line Interface
consys on GitHub
A compact Rust system monitor: useful machine state in a small, stable, parseable block of text — no logos, no theming, near fetch-tool speed with CPU identification and far fewer tokens than neofetch/fastfetch.
twig on GitHub
A directory tree viewer for the point where humans and machines share terminal output — directory shape first, plain indentation over ASCII branches, 32–77% fewer tokens than tree on the benchmarked trees.
Game content uses open / freely-licensed sources only (SRD 5.1 under CC‑BY‑4.0, MIT-licensed historical story files). Attribution lives on each tool’s page. consys and twig are open-source Rust CLIs — source on GitHub.