See what people are saying
README
Game Mode Sandbox
Game Mode Sandbox is a frontend-only Next.js playground for trying different rule configurations of a stock market draft game. It uses fake companies, fake price history, and shared typed fixtures so multiple contributors can build in parallel against the same contract. This project intentionally has no server, no API calls, no database, no persistence, and no scoring yet.
Getting started
npm install
npm run dev
Checks
npm run lint
npm run typecheck
npm run test
npm run build
All four must pass on every PR.
Mode Lab
npm run lab
npm run lab -- --games=5000 --seed=7
Simple bots play every preset mode on the same seeds and the script prints how the rules treated them: buys, skips, rounds with nothing buyable, blocked cards, sales, auto-sells, cash left idle at the end, the spread of final values, and any stuck games. The bots live in lib/lab/strategies.ts. This is a developer tool; nothing in it is shown to players.
Folder ownership
- Kenny:
app/(exceptapp/dev),components/store/,lib/data/ - Ethan:
lib/engine/ - Jane:
components/game/,app/dev/ - Shared (tiny separate PRs only):
lib/types.ts,lib/constants.ts,lib/random.ts,lib/fixtures.ts
Preset modes
- Classic Draft: 8 rounds, 5 stocks per round, one per industry, 10-year hold, equal split, no selling
- One Shot: 5 rounds, 1 stock per round, 5-year hold, set amounts 10-50%, no selling
- Budget Boss: 6 rounds, 8 per round (one per industry), hold until end, $500 minimum plus any amount, no selling
- Active Trader: 10 rounds, 10 per round, 3-year hold, $500 to $3,000 per pick, sell any stock
- Sector Swap: 8 rounds, 8 per round, one per industry, hold until end, set amounts 5-25%, sell but replace with same industry
- Selling and replacing uses your pick for that round.
- Sector Focus: 8 rounds, 5 per round all from one industry, 5-year hold, equal split, no selling
Custom Mode
Custom Mode lets you set every rule yourself, and the settings are shared through the URL.
Similar repos
See what people are saying
README
Game Mode Sandbox
Game Mode Sandbox is a frontend-only Next.js playground for trying different rule configurations of a stock market draft game. It uses fake companies, fake price history, and shared typed fixtures so multiple contributors can build in parallel against the same contract. This project intentionally has no server, no API calls, no database, no persistence, and no scoring yet.
Getting started
npm install
npm run dev
Checks
npm run lint
npm run typecheck
npm run test
npm run build
All four must pass on every PR.
Mode Lab
npm run lab
npm run lab -- --games=5000 --seed=7
Simple bots play every preset mode on the same seeds and the script prints how the rules treated them: buys, skips, rounds with nothing buyable, blocked cards, sales, auto-sells, cash left idle at the end, the spread of final values, and any stuck games. The bots live in lib/lab/strategies.ts. This is a developer tool; nothing in it is shown to players.
Folder ownership
- Kenny:
app/(exceptapp/dev),components/store/,lib/data/ - Ethan:
lib/engine/ - Jane:
components/game/,app/dev/ - Shared (tiny separate PRs only):
lib/types.ts,lib/constants.ts,lib/random.ts,lib/fixtures.ts
Preset modes
- Classic Draft: 8 rounds, 5 stocks per round, one per industry, 10-year hold, equal split, no selling
- One Shot: 5 rounds, 1 stock per round, 5-year hold, set amounts 10-50%, no selling
- Budget Boss: 6 rounds, 8 per round (one per industry), hold until end, $500 minimum plus any amount, no selling
- Active Trader: 10 rounds, 10 per round, 3-year hold, $500 to $3,000 per pick, sell any stock
- Sector Swap: 8 rounds, 8 per round, one per industry, hold until end, set amounts 5-25%, sell but replace with same industry
- Selling and replacing uses your pick for that round.
- Sector Focus: 8 rounds, 5 per round all from one industry, 5-year hold, equal split, no selling
Custom Mode
Custom Mode lets you set every rule yourself, and the settings are shared through the URL.