Cobalt Test
31.59.125.121:28015 checked 14d ago
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
daily · 1 is bestTop 65% of all ranked servers. Ranked on player hours over the last seven days.
Wipe schedule
too few wipes seen yetNot 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
newest first| Wiped | Peak | Crowd | Lasted | Players before |
|---|---|---|---|---|
| Sun 27 Sep, 21:41 UTC17d ago | 0 | – | running | 0 |
| Wed 23 Sep, 22:22 UTC21d 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.
Similar servers
Quick answers
Map and rules
What settings does Cobalt Test run?
There is no gather rate in the name Cobalt Test. Up to 8 players can group, which is the game's default. It runs survival, gather, build and raid: the standard game. Raiding and fighting other players are allowed. Community is its section in the server browser. VAC, Valve's anti-cheat, is switched on.
Which map is active on Cobalt Test?
Generated by the game: the procedural map on Cobalt Test.
Player count
How full is Cobalt Test?
Last seen 14 days 13 hours ago, Cobalt Test is offline at the moment.
What position does Cobalt Test hold in the server rankings?
For player hours over the last week, Cobalt Test is #15,514, which puts it in the top 65% of all ranked servers.
Server tags
How should you read the tags on Cobalt Test?
For the game's server browser, Cobalt Test publishes these tags: gmrust (Game mode): Standard survival gameplay; mp10 (Max players): The server has 10 slots; ts8 (Group limit): Teams max out at 8—the default setting for Rust; v2633 (Protocol): To join, your game must match protocol 2633; cs165217 (Build): The game build is 165217; ptrak (Networking): The network layer is RakNet, which is standard; $r? (Region code): Region code left unset. The tags carry its players now, its queue and the time its world was made as well, and the top of this page displays them.
Which Rust Zerg Life filters and lists cover Cobalt Test?
The Rust Zerg Life lists that include Cobalt Test are Rust community servers for clans. Under these filters it shows on the server list: Type: Community (not modded, not official) and No plugins at all; Group limit: 5 or more.
About the server
How reliable is Cobalt Test, and is it up?
No sign of Cobalt Test at present: it was last seen 14 days 13 hours ago. Across the last 7 full days, 0 of 168 hours were online, which is 0%. Rust Zerg Life has been tracking it since 23 September 2026.
What Rust version is Cobalt Test on?
On Windows, Cobalt Test runs Rust network protocol 2633 and build 165217. You can only join if your game uses the same protocol, and Steam takes care of updating it.
Where can you find Cobalt Test?
There is no region published by Cobalt Test. The location shown by Rust Zerg Life is what a server says; it does not check where the machine stands. You can reach it at 31.59.125.121:28015.
Wipe days
What happens on wipe day on Cobalt Test?
At their busiest, its recent wipes drew an average of 0 players. 0 hours after the latest wipe, the crowd peaked.
When does Cobalt Test wipe?
The record of Cobalt Test's wipes is too thin to reveal its rhythm. Come Thursday 5 November at 19:00 UTC, the monthly force wipe arrives for every Rust server. The world it is running now dates from 14 days 14 hours ago.
How to join
How can I connect to Cobalt Test?
Join by entering client.connect 31.59.125.121:28015 in the console (press F1 first). Or use Launch Rust on this page, which opens Rust through Steam and connects you.
Server tags
Published as mp10,ptrak,$r?,v2633,gmrust,cs165217,ts8
Game
gmrust
mp10
ts8
v2633
cs165217
ptrak
$r?
Players now (cp), the queue (qp) and the wipe time (born) are in the tag string too; they change every few minutes and are shown at the top of the page. Flag meanings are Facepunch's.