How an undefeated run actually works
Each round spins up one franchise era — a city and a window of years, anywhere back to 1966 — and lays out that era’s whole squad with real season statistics on every card. You pick a player, choose his seat, and move on. Twelve seats later the season simulates week by week: your roster’s era-fair ratings combine in a position-weighted team score, and a single playoff loss ends the run. A fantasy draft on top of a season simulator — that is the whole genre, played straight.
Why era-fair ratings matter
An all-time game is only as honest as its cross-era math. Every player-season here is rated on how good it actually was — production, honors, reputation, against its own era — so a 1962 linebacker and a 2024 edge rusher can share a board without either being a trap pick. The method is public: how the ratings work.
Every sport has its perfect season game
The perfect season game, NFL style: football runs twelve seats, twenty games, and a shared Daily Challenge with streaks — the place to build an undefeated NFL team. The NBA version: basketball runs a starting five through the true 82-game season — chase an undefeated NBA team. The MLB version is the deep end: baseball fields a lineup and a rotation against 162 games, franchise eras back to 1871 — chase a perfect MLB season. And it keeps going: college football (a 16-0 run wins the title), golf across twenty scheduled events, including all four majors, and soccer, where the unbeaten season has a name of its own — the Invincibles — plus hockey (98-0 to the Cup) and the all-time cricket XI, fourteen matches and the knockouts without a loss.