Eight classes: four modes and four strategies. Your class decides what you are best at — never what you are allowed to do.
1. A class amplifies, it never gates. Every talent on the board can be taken by anyone — your class just gets +30% on its own specialty. Anybody can run trains; a Rail Baron runs them better.
2. Each class holds one true exclusive. Vehicle classes: the Mk6–Mk8 tiers for their own mode (talents alone stop at Mk5). Strategy classes each hold one signature node from level 1 — a Reach town, an Industrial Trust, a Treasury Bond, or an Exchange Seat — with five more of each scattered on the board for anyone willing to travel (glossary).
3. The founder's build is the company's build. Joining a friend's company uses their class and talents, never a stack of both — and a build freezes about five minutes after founding, so plan on the board first.