openttd
Open source clone of the Microprose game "Transport Tycoon Deluxe".
TLDR
Start a new game
$ openttd -g
Load save game at start
$ openttd -g [path/to/file]
Start with the specified window resolution
$ openttd -r [1920x1080]
Start with a custom configuration file
$ openttd -c [path/to/file]
Start with selected video, sound, and music drivers
$ openttd -v [video_driver] -s [sound_driver] -m [music_driver]
Start a dedicated server, forked in the background
$ openttd -f -D [host]:[port]
Join a server with a password
$ openttd -n [host]:[port]#[player_name] -p [password]