MU Season 21 servers

A list of MU Season 21 servers built from what each site publicly declares. 25 servers made this list.

How this list is made
Servers — Season 21
Disclosure: our own server

How this list is made

How we built this list: we read the public home page of each server found in our search map and noted only what the site itself declares (season, version, exp, reset). We did not test the servers, nobody paid to appear and we do not rank by quality: the order is alphabetical. Check each server's rules on its own site.

Want a server to start today? MU Éter is Season 4, with sign-up and download on its official site.

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Servers — Season 21

asteriamu.com search: US
“Asteria MU Online Season 21 Part 2-3”
Season 21 · reset
according to its own site on 2026-09-30 · official site
brasilmuonline.com.br search: BR
“Servidor MU Online Season 21 | Crusader (Paladin) | Jogue Grátis”
Season 21
according to its own site on 2026-09-30 · official site
brasmu.com.br search: BR
“BrasMU Season 21 Nova Classe | MU Season 21 Update | New character Season 21 MU Online | Novos itens Legendary Mu Online | Hard | Easy | Acu”
Season 20/21 · reset
according to its own site on 2026-09-30 · official site
chaosmu.net search: AR
“Chaos Mu Home”
Season 21
according to its own site on 2026-09-30 · official site
dammemu.com search: VN
“Trang Chủ ⋆ Đam Mê MU Online”
Season 2/6/14 · reset
according to its own site on 2026-09-30 · official site
endlessmu.net search: BR
“EndlessMU Home”
Season 21
according to its own site on 2026-09-30 · official site
epicmu.net search: BR
“EpicMU - Season 21 Part 2-3 x500 MU Online Server | No Wipe”
Season 21 · Exp 500 · reset
according to its own site on 2026-09-30 · official site
globalmuonline.com search: VN
“Mu Online - Global Mu Online Season 21”
Season 20/21 · Exp 25 · reset
according to its own site on 2026-09-30 · official site
heroesmu.com search: PE
“HeroesMu - Season 21 Crusader”
Season 21 · Exp 1500, 2000
according to its own site on 2026-09-30 · official site
lifemu.com search: VN
“LifeMU - MU Online Season 21 Part 2-3”
Season 21 · reset
according to its own site on 2026-09-30 · official site
lorenciamu.com search: BR
“Lorencia World | Ultra Server | Season 21 Part 1-3 Home”
Season 21 · reset
according to its own site on 2026-09-30 · official site
muacacias.net search: VE
“MU Acacias - Servidor privado de MU Online”
Season 21
according to its own site on 2026-09-30 · official site
muarkadia.com.br search: BR
“Arkadia Mu Online Server”
Season 21
according to its own site on 2026-09-30 · official site
muasean.org search: VN
“MU Asean - Blog MU Online Reset & Non Reset Season 21”
Season 21 · reset
according to its own site on 2026-09-30 · official site
muextinction.com search: BR
“Mu Extinction - Noticias”
Season 21 · sem reset
according to its own site on 2026-09-30 · official site
muthematrix.com search: AR
“Mu The Matrix - Noticias”
Season 21 · reset
according to its own site on 2026-09-30 · official site
nexus-mu.com search: AR
“MU Online Server PVP Fast Latino Season 21 - Nexus MU”
Season 21 · reset
according to its own site on 2026-09-30 · official site
perumu.com search: PE
“PERU MU ONLINE Season 21 Episodio 1-2”
Season 21
according to its own site on 2026-09-30 · official site
raidmu.com search: BR
“RaidMU — Season 21”
Season 21 · Exp 150 · sem reset
according to its own site on 2026-09-30 · official site
raklionmu.com search: BR
“Raklionmu - Mu Online Season 21”
Season 21 · reset
according to its own site on 2026-09-30 · official site
realmu.net search: BR
“RealMU - Início”
Season 21 · reset
according to its own site on 2026-09-30 · official site
servera-mu.online search: RU
“Сервера MU Online | TOP 100 серверов”
Season 3/4/6 · 97d / 99i
according to its own site on 2026-09-30 · official site
thaimu.com search: TH
“ไทยมิว มิวออนไลน์ MU Online Season21 มิวออนไลน์ มิวPC คนเยอะ เปิดใหม่ สมจริง”
Season 21
according to its own site on 2026-09-30 · official site
vortexmu.net search: BR
“VortexMU Season 21 Part 2-3 | MU Season 21 Nova | Novos Items Legendary | Dark Lord Renew | New character Crusader Season 21 | Novos itens L”
Season 21
according to its own site on 2026-09-30 · official site
worldmuonline.com search: CO
“World Mu Online - Servidor Privado MU Season 21 Episode 1 | Experie...”
Season 21 · Exp 1200 · reset
according to its own site on 2026-09-30 · official site

Disclosure: our own server

MU Éter is the server run by the same team behind this site. It is a Season 4 server with its own systems. It is shown here apart from the list so the relationship is clear.