Sudoku · sovereign WebAssembly
Every puzzle is proven to have exactly one solution — the generator counts solutions rather than assuming, and never goes below 17 clues, the proven minimum. The board, the rules, the generator and the renderer are a single NishiLang module compiled to WebAssembly; the page it runs on holds no game logic.
Connect Four · vs alpha-beta AI
You are red. Tap any square in a column to drop a disc; get four in a row — across, down or diagonally. The AI searches 5 plies with alpha-beta pruning.
Tic-Tac-Toe · vs unbeatable AI
You are X and move first. The AI plays a full minimax search, so it never loses — the best you can force is a draw.
Play together · sovereign multiplayer, no middleman
Matches below were played through the Nishi message store: every move is a message in a room on the family NAS, the board is a deterministic replay of that log, and table chat rides the same room. No game server, no third-party relay — a match a family plays on their LAN never leaves it. The same store carries the video-room chat; the interactive in-page client is the next rung on the comms roadmap.
Every game in the estate
This is the whole list, and it is honest about status. Playable here runs on this page. Engine demo is a sovereign engine running on its own page. Not started means there is no engine yet — we do not print a date we have not earned.