codebase
CoffeeMUD
A MUD server in Java, with the largest MSSP report of anything we have probed and an unusually broad protocol surface.
Games running it
32 listed · 0 archived · measured, not declared
Counted from the catalogue on this request, over the same filter the link above carries — so this number and that listing are one query and cannot drift apart.
offered in their handshakes: MCCP, MXP, MSSP, MSDP
CoffeeMUD is a Java MUD server with an unusually wide feature surface — it ships with its own web server, mail, forums and a large class and skill system, and it is one of the few servers in the hobby not written in C.
It is actively maintained, which by the standards of this part of the catalogue is worth saying out loud.
What it looks like from outside
MSSP and MCCP2, and CoffeeMUD is one of only three servers out of twenty we tried that also
answered the plaintext MSSP-REQUEST form — a variant that predates the telnet option and is
still occasionally seen.
Its MSSP report is the largest we have measured: 47 fields, including PORT reported nine
separate times for nine separate ports. That is not a malformation. MSSP variables are lists, and a
crawler that flattens a multi-valued PORT into one string produces the integer 80234201 out of
"80" "23" "4201" — which is a bug this project shipped and fixed, and the reason the parser here
keeps values as lists throughout.
See also
- DikuMUD The root of the combat-MUD family. Levels, classes, equipment and area files — and a licence that shaped a generation of derivatives.
- MSSP The Mud Server Status Protocol — how a game tells a crawler about itself. Everything it reports is declared, not measured, and this site keeps the two apart.