2XKO Producer Sarah Tudor Joins the Riot MMO Team

"Locked In" for the Runeterra MMO

Sarah Tudor — better known online as MuddyMink — announced on X that she's joined the Riot MMO as a Game Producer. Short, all caps, and very on-brand for her: "I'm so extremely happy and LOCKED IN! Let's make this thing!!"

If you follow 2XKO, you already know her work even if you didn't know her name. For the past year-plus she's been the producer behind the fighting game's Stages, Avatars, Lobbies and Stickers. Now she's moved onto the project Riot fans have been waiting on the longest.

What She Did on 2XKO

Producing "Stages" on a fighting game is a bigger job than picking backgrounds. On 2XKO that role sits on top of the whole live-service content machine — the stages you fight on, the avatars and lobbies that frame the social layer, and the stickers that keep the storefront ticking over on a monthly cadence.

By her own account, Tudor was the primary driver of features across all of those teams, coordinating internal and external developers spanning environment art, tech art, character art, VFX and engineering. The headline number she points to: she pushed stage delivery from three a year to five or more by hunting down the bottlenecks in the art pipeline.

That last point is the one that matters most for where she's headed. Standing up a team that can reliably ship content month after month — instead of building toward one launch and stopping — is exactly the muscle a live game needs. She called the 2XKO run "a career dream come true." It also reads like a two-year audition for a much bigger live-service job.

2XKO's roster keeps growing, too — Senna lands on the fighter list on June 9 — so the stage-and-cosmetics cadence she helped build isn't slowing down behind her.

How She Got Here

Tudor didn't parachute into production. She came up through QA, which is one of the most reliable on-ramps into games and one of the most underrated. You learn how a build actually behaves under stress before you're ever asked to schedule one.

She started as a Test Analyst at Blizzard Entertainment in 2020, then spent nearly three years at Singularity 6 — the studio behind the cozy MMO Palia — rising from Senior QA Analyst to QA Expert. That's relevant: she's already shipped and supported a live online game with a persistent world, which is the closest thing on her résumé to what Riot is building.

She joined Riot as a Production Coordinator in 2024, stepped up to producing 2XKO's Stages, and has now made the jump to the MMO. QA to coordinator to producer, on a live game, in two years. You can follow her directly on X at @MuddyMink.

What This Signals for the MMO

The Riot MMO — the Runeterra-set game Riot first teased back in 2020 — has been the studio's quietest big project for years, including a publicly acknowledged reset to make sure it lands. Concrete news is rare, so individual hires end up being the tea leaves fans read.

This one's worth reading. Tudor's recent track record is almost entirely about sustained content delivery and pipeline efficiency — getting a team to ship more, more reliably, every month. That's not the skill set you load up on during early prototyping. It's the skill set you bring in when a project is trying to become something it has to feed for years.

For now, the most concrete thing we have is the energy in the announcement itself — "LOCKED IN," "let's make this thing." After a year-plus turning 2XKO's stage pipeline into a machine, she's pointing that same drive at the game Runeterra fans have wanted longest.