MOUSE Roblox Overview: Foggy Horror Co-op on the Vanished Steamboat

What Is MOUSE?

MOUSE 🐭 by Myriagone (@Myriagone) is a Roblox horror co-op experience with a sharp premise: in 1928 the steamboat S.S. Willie left Podunk Landing with cargo and crew—and never made port. On foggy nights you can still hear her whistles. You and your crew row out to the vanished steamboat, then try to leave. The game is inspired by Night Signal Entertainment’s short film The Vanishing of S.S. Willie and is fiction based on the 1928 public-domain cartoon Steamboat Willie. It is not affiliated with or endorsed by Disney. Maturity is listed as Mild, and the tone sits in a distinct horror niche versus the usual steal-sim clones.

Official place: MOUSE on Roblox.

How to Play

Gather a crew, approach the vanished steamboat through the fog, explore and survive the encounter, and attempt to get out. The fantasy leans atmospheric and cooperative rather than combat-heavy arena play.

• Form a crew before rowing into the fog.
• Reach the vanished steamboat that still whistles on foggy nights.
• Explore and endure the horror scenario together.
• Try to leave—escape is the stated end goal of the outing.

Expect tension, fog, and coordination with teammates more than a checklist of grind upgrades.

Platforms

MOUSE runs on the Roblox client across supported devices (desktop and mobile are the common defaults for co-op horror sessions; play with friends on the same experience page).

Beginner Tips

• Play with voice or clear chat—co-op horror falls apart when the crew splits silently.
• Stay near teammates in dense fog; solo wandering is how groups wipe.
• Treat the premise as fiction and atmosphere; do not expect Disney IP crossovers.
• Re-run with a coordinated group after a failed escape to learn layout and cues.
• If horror jumpscares are intense for you, start with trusted friends and Mild-maturity expectations in mind.

MOUSE is a strong recommendation when you want atmospheric Roblox horror with a public-domain steamboat mythos instead of another incremental steal tycoon.