18AL is a shorter 18xx game set in Alabama and designed by Mark Derrick. It is currently available as a free print-and-play game from John David Galt.
6 Companies
ABC - Atlanta, Birmingham and Coast Railroad
ATN - Alabama, Tennessee and Northern Railroad
L&N - Louisville and Nashville Railroad
M&O - Mobile and Ohio Railroad
TAG - Tennessee, Alabama and Georgia Railway
WRA - Western Railway of Alabama
5 Private Companies
Tuscumbia Railway
South and North Alabama Railroad (coal field token)
Brown and Sons Lumber Company (lumber terminal tile)
Memphis and Charleston Railroad (train name chits)
New Decatur Yards (half-price train purchase)