# reachable var (world)

Source: https://ref.dm-lang.org/world/var/reachable
Added in BYOND 502.

Returns 1 if the world is currently hosted and the port can be reached by players (as determined by the BYOND hub), 0 if not.

If the port is not reachable, there may be a brief period during which the hub is still attempting to make contact; during that time the port is assumed to be reachable. Currently, the reachability test times out and fails after 30 seconds.

### See also
- [port var (world)](https://ref.dm-lang.org/world/var/port.md)
- [OpenPort proc (world)](https://ref.dm-lang.org/world/proc/OpenPort.md)