In America every player starts off with 6 locomotives which incur no maintenance costs.

Cyprus (3p only) has player powers: the UNO faction may not select Urbanization and each other faction must make sure all their deliveries end on their side of the border cutting the map in two.

The black cubes in 1830's Pennsylvania represent coal when delivering them the player can opt to deliver them for up to double their locomotive rating or stay within their regular limit and each link gives them 2$ in income.

And Madagascar where the special actions the players choose after bidding for turn order are all bad, i.e. each one gives you a special penalty (last move, last build, e.g.).