The Isle RCON Command Builder
The Isle does not speak Source RCON, which is why every generic RCON client and web panel fails against it. Pick a command and get the exact bytes, plus a snippet you can actually run. Built in your browser; this page never connects to your server.
Command bytes (hex)
Escaped, for a string literal
Login frame you must send first
Runnable snippet
The protocol, in four lines
The Isle uses its own TCP protocol rather than Source RCON:
- Login:
0x01+ password +0x00 - Command:
0x02+ opcode + optional payload +0x00 - Replies are plain text, not length-prefixed packets
- A2S is not answered at all, so query sites report a live server as offline
These opcodes come from the client we run against real Evrima servers in production, not from a forum thread. That matters here more than usual: the community documentation for this protocol disagrees with itself, and a wrong opcode silently does nothing or does something else.
The player-list reply trips almost everyone
The reply to 0x40 is a PlayerList header followed by comma-separated
values whose first half is Steam IDs and second half the matching names, in the
same order. They are not interleaved id,name pairs. Parse it as pairs and
every name attaches to the wrong player, which looks like a server problem and is not.
If you would rather not hand-roll a socket
On a managed The Isle server the player list, growth and health readouts are already in the panel, RCON is firewalled rather than merely password-protected, and the EOS launch arguments are set correctly, which is the other thing that stops an Evrima server dead.
Diagnose a Game.ini or TheIsle.log → · Build a clean Game.ini →
Want this on a real server? Supercraft hosts The Isle →