Bukkit

Migrant is a small mod for Bukkit servers that creates a border similar to BorderGuard that moves over time, so stuff you build will eventually go out of bounds and new untouched areas will become playable.

I created it for two reasons: On small servers you want to keep players confined to a small space, so everything is relatively close together and so that your not using too many server resources by having players and chunks loaded all over the place. You can do that using any other border mod but they create a problem: eventually you use up most of the land and there is not much space left. Migrant solves that problem, new land is constantly becoming available, while keeping players confined in the same size space. The second reason is because I thought it'd be a cool experiment: how you play minecraft changes when you have to keep slowly moving in a direction. Also worlds look really cool after using this mod on your server for a bit and then taking it off, you end up with a nice strip of buildings and creations in a line, closely packed.

Migrant allows for you to change some settings: how big the playable area is and how fast it moves.

This is an early release, I have some features in mind that will be added in later versions.

To install simply drag and drop the jar file into the plugins folder on your server, nothing more is required, though you can change the settings to your liking in /plugins/migrant/config.yml