Cobalt Test
Offline 31.59.125.121:28015 checked 28d ago
Measurements
Players
Every five minutes, from the Steam server list.
Hourly average and peak, UTC.
Daily average and peak, UTC.
Server performance
48 hours: hourly readings. 30 to 90 days: one point a day, with the day's average and lowest fps, most entities and most memory. From asking the server directly; low fps and a climbing entity count mean lag.
Rank
Top 65% of all ranked servers. Ranked on player hours over the last seven days.
Wipe schedule
Not enough wipes seen yet to tell when the next one is. Every server wipes at the monthly force wipe.
The first 48 hours of its last wipes
Players each hour, from the hour of the wipe. The latest peaked at 0, 0 hours in.
Wipes
| Wiped | Peak | Crowd | Lasted | Players before |
|---|---|---|---|---|
| Sun 27 Sep, 21:41 UTC31d ago | 0 | – | running | 0 |
| Wed 23 Sep, 22:22 UTC35d ago | 0 | – | 4 days | 0 |
Peak: the most players in the first 48 hours. Crowd: whether every day of the wipe kept at least half that peak, or the day it fell below. A new world less than six hours after a wipe is a restart, not a wipe of its own.
Quick answers
Player counts
How does Cobalt Test rank against other Rust servers?
Over the past week it ranks #15,514 for player hours, which puts Cobalt Test in the top 65% of all ranked servers.
How busy is Cobalt Test?
At this count Cobalt Test is offline, with its last sighting 28 days 12 hours ago.
Tags
What do the server tags on Cobalt Test mean?
The game's server browser reads the tags Cobalt Test publishes: gmrust (Game mode): Survival in the standard Rust style; mp10 (Max players): 10 slots are available; ts8 (Group limit): 8 per team is the default limit; v2633 (Protocol): To join, your game must match protocol 2633; cs165217 (Build): Game build: 165217; ptrak (Networking): The standard network layer, RakNet, is in use; $r? (Region code): No region code is set. The tags also carry the current player count, the queue and when the world was made; you will find them at the top of this page.
Which Rust Population lists and filters include Cobalt Test?
On Rust Population, Cobalt Test is filed under these lists: Community servers, field-listed. Look for it under these filters on the server list: Type: Community (not modded, not official) and No plugins at all; Group limit: 5 or more.
Wipe schedule
What does wipe day look like on Cobalt Test?
The busiest point of its recent wipes averaged 0 players. The crowd on the latest wipe peaked 0 hours in.
What is the wipe schedule on Cobalt Test?
Too few wipes are on record for Cobalt Test to show its rhythm. On Thursday 5 November at 19:00 UTC the monthly force wipe comes round, and every Rust server wipes with it. The world it runs now dates from 28 days 14 hours ago.
Map and rules
Which map does Cobalt Test run?
A procedural map, generated by the game, is in use on Cobalt Test.
What are the rules and settings on Cobalt Test?
No gather rate appears in the name of Cobalt Test. The group limit is 8 players, which is the default. This server runs survival, the usual game, where you gather, build and raid. You can raid and fight other players here. A community server, it appears in the Community section of the browser. You play with Valve's anti-cheat on: VAC.
About the server
Which version of Rust does Cobalt Test run?
The setup is Rust network protocol 2633 and build 165217 on Windows for Cobalt Test. Steam updates your game automatically, but you need the same protocol to join.
Is Cobalt Test online, and how reliable is it?
Currently offline, Cobalt Test was last seen 28 days 12 hours ago. It was up 0% of the time over the last 7 full days, 0 out of 168 hours. On 23 September 2026, Rust Population saw it for the first time.
Where is Cobalt Test located?
A region is not published by Cobalt Test. Rust Population does not look up where the machine stands; it shows where the server says it is. You will find it at 31.59.125.121:28015.
Getting in
How do I join Cobalt Test?
Either enter client.connect 31.59.125.121:28015 in Rust's console after pressing F1, or use Launch Rust here to open Rust through Steam and be connected.