On the class lists: D (53), with population over 48 hours and no performance mark.
Players now0/ 1500% full
7-day average1peak 6
Rank#3,541top 16%
Last wipe9d agono schedule published
Next wipe–no rhythm it keeps
Subjects
Subject
Mark
Grade
Teacher's comment
Populationplayers against slots, 7-day average
0/ 100
F
A quiet classroom so far: 1 of 150 on average. Plenty of space to grow.
Standingrank on player hours
84/ 100
B+
Holds a respectable place: #3,541 on player hours.
Uptimehours on the list, last 48
98/ 100
A+
Excellent attendance: on the list 47 of the last 48 hours.
Performanceserver fps, last 48 hours
60/ 100
C
Slows down under load at times: 36 server fps on average.
Wipeskeeping the crowd after a wipe
50/ 100
D
Keeps a fair share of its players through a wipe: 50% of wipes kept half their crowd.
Momentumrank now against a week ago
33/ 100
F
Lost ground: down 1,201 places this week. A strong wipe could turn it round.
A term to build on.
Strongest in uptime (A+); population is the one to work on (F).
How it is marked: each subject is out of 100 from the figures on this page (population is the 7-day average against the slots, standing is 100 less the top share, uptime the hours of the last 48 it was seen, performance its fps against 60, wipes the share of its wipes that kept half their crowd, momentum its rank against a week ago with 50 for no change). The grade is their average: 95 and over is an A+, 90 an A, 85 an A−, 80 a B+, 75 a B, 70 a B−, 65 a C+, 60 a C, 55 a C−, 45 a D, under 45 an F.
Progress through the term
Its players, its performance and its rank, hour by hour and day by day. Dashed red lines are its wipes.
Players
Every five minutes, from the Steam server list.
AveragePeak
Hourly average and peak, UTC.
AveragePeakWipe
Daily average and peak, UTC.
Server performance
Average fpsLowest fpsWipe
Most entitiesWipe
Most memory, MBWipe
Average fpsLowest fpsWipe
Most entitiesWipe
Most memory, MBWipe
Average fpsLowest fpsWipe
Most entitiesWipe
Most memory, MBWipe
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, measured since 17 Sep. From asking the server directly; low fps and a climbing entity count mean lag.
Rank
daily · 1 is best
RankRank in region
Top 16% of all ranked servers. Ranked on player hours over the last seven days.
Attendance: the wipe record
3 wipe days in the last 16 weeks
MTWTFSS
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JulAugSepOct
W wiped that day F the force wipe · today. From the wipes in the table below.
Wipe schedule
no rhythm it keeps
Its wipes keep no rhythm, so there is no next wipe to predict. Every server wipes at the monthly force wipe.
usual gap11 daysbetween real wipes
on rhythm0%of its recent wipes
wipe-day peak6players, last three wipes
crowd held50%else halves by day 5
The first 48 hours of its last wipes
Sat 17 OctThu 1 OctFri 25 Sep
Players each hour, from the hour of the wipe. The latest peaked at 7, 26 hours in.
Wipes
newest first
Wiped
Peak
Crowd
Lasted
Players before
Sat 17 Oct, 18:11 UTC9d ago
7
–
running
0
Thu 1 Oct, 17:56 UTCFW25d ago
6
halved by day 5
16 days
2
Fri 25 Sep, 19:01 UTC31d ago
6
✓ held half
6 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
classmates: the same kind of game, then region, group limit, rate and wipes
In what location does [US] Cobalt Island Main 1.5x | Vanilla sit?
You won't find a region tag on [US] Cobalt Island Main 1.5x | Vanilla, but its name indicates North America. The location shown on Rust Server Score comes from the server itself, not from a lookup of the machine. Find it at 64.20.33.110:28015.
How dependable is [US] Cobalt Island Main 1.5x | Vanilla, and is it online at the moment?
Right now, [US] Cobalt Island Main 1.5x | Vanilla is online. About 10 hours ago, it restarted, based on the uptime it reports. It was up 100% of the time over the last 7 full days, 168 of 168 hours. On 13 September 2026, Rust Server Score saw it for the first time.
How well does [US] Cobalt Island Main 1.5x | Vanilla run?
It never fell below 25 server fps in the last 48 hours, averaging 36. Up to 43,913 entities were in the world, covering buildings, deployables and the rest. At its highest, it used 3,388 MB of memory. Lag is what players feel when fps is low and the entity count climbs.
On what Rust version does [US] Cobalt Island Main 1.5x | Vanilla sit?
You will find [US] Cobalt Island Main 1.5x | Vanilla on Rust network protocol 2635 and build 168909, hosted on Linux. You need the same protocol to join; Steam takes care of updating your game.
Wipe cycle
How frequently does [US] Cobalt Island Main 1.5x | Vanilla wipe its map?
There is no next wipe to predict on [US] Cobalt Island Main 1.5x | Vanilla, as it wipes at irregular times. The monthly force wipe reaches every Rust server, and the next one lands on Thursday 5 November at 19:00 UTC. It has been running its current world for 9 days 23 hours.
What happens on [US] Cobalt Island Main 1.5x | Vanilla when wipe day arrives?
The average peak on its recent wipes was 6 players. 26 hours after the latest wipe began, the crowd hit its peak. Half the peak held until the next wipe in 50% of its recent wipes. The crowd dropped below half by day 5 in the wipes where it did not hold.
Player numbers
Where does [US] Cobalt Island Main 1.5x | Vanilla place in the wider field of Rust servers?
In the top 16% of all ranked servers, [US] Cobalt Island Main 1.5x | Vanilla sits at #3,541 for player hours over the last seven days.
What does the population on [US] Cobalt Island Main 1.5x | Vanilla look like?
Right now, 0 players are on [US] Cobalt Island Main 1.5x | Vanilla, which has 150 slots. The seven-day average is 1 players, with a peak of 6. The highest average in the last 48 hours came at 21:00 UTC, with 2 players.
Tags
What do [US] Cobalt Island Main 1.5x | Vanilla's tags stand for?
The game's browser takes its cue from the tags [US] Cobalt Island Main 1.5x | Vanilla has set: gmrust (Game mode): Survival in the standard Rust style; mp150 (Max players): 150 slots are available; ts6 (Group limit): No team may go above 6; v2635 (Protocol): The game protocol is 2635, so your game must match that version to join; cs168909 (Build): The game build is 168909; ptrak (Networking): RakNet handles it, the game's default network layer; $r? (Region code): A region code is not set here; ^o (Oxide): Plugin framework: Oxide (uMod); ^z (Modded): Plugins or settings alter the game, so it sits under Modded. Its tags also carry today's player number, the queue length and the world's creation time, which you'll find at the top of this page.
Which lists and filters on Rust Server Score show [US] Cobalt Island Main 1.5x | Vanilla?
Rust Server Score lists that include [US] Cobalt Island Main 1.5x | Vanilla: 1.5x Rust servers, graded, Modded Rust servers, graded and North America Rust servers, graded. These filters bring it up on the server list: Region: North America; Type: Modded; Server tag: Modded ^z and Oxide ^o; Group limit: 5 or more; Last wipe: In the last 2 weeks; Gather rate: 1.5x.
Server rules
What settings and rules apply on [US] Cobalt Island Main 1.5x | Vanilla?
Going by its name, [US] Cobalt Island Main 1.5x | Vanilla runs 1.5x gather. You can play in groups of up to 6 players. You get survival here, gather and build and raid: the standard game. You can raid other players and fight them. Plugins or settings change the game here, and the server browser lists it under Modded. The plugin count runs to Oxide. You are covered by VAC, Valve's anti-cheat.
[US] Cobalt Island Main 1.5x | Vanilla runs which map?
The game generates the procedural map on [US] Cobalt Island Main 1.5x | Vanilla at size 3,200 with seed 1337. Because size and seed match, the map is the same each time, and this page links to it on RustMaps. You will see the map name listed as: Custom Map.
Connecting
How should you connect to [US] Cobalt Island Main 1.5x | Vanilla?
To connect, start Rust, press F1, and type client.connect 64.20.33.110:28015. Or click Launch Rust here, which launches Rust through Steam and joins you. You can find its website at https://cobaltgamers.com/.
Server tags
what each one means
Published asmp150,ptrak,$r?,v2635,gmrust,cs168909,ts6,^o^z
Game
gmrust
Game modeSurvival in the standard Rust style.
mp150
Max players150 slots are available.
ts6
Group limitNo team may go above 6.
v2635
ProtocolThe game protocol is 2635, so your game must match that version to join.
cs168909
BuildThe game build is 168909.
ptrak
NetworkingRakNet handles it, the game's default network layer.
$r?
Region codeA region code is not set here.
Mods and access
^o
OxidePlugin framework: Oxide (uMod).
^z
ModdedPlugins or settings alter the game, so it sits under Modded.
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.
A term to build on. Strongest in uptime (A+); population is the one to work on (F).