1. The Most Common Cause: A Content Maturity Restriction
Roblox does not only hide games from an account; it can show them and then refuse to launch them. Its Content Maturity FAQ describes exactly that behaviour: games above the maturity level selected for an account “may still be displayed in search results or advertised in ads, however, the games will not be playable. Users will receive a message stating the game is unavailable due to the content maturity restriction”. If that is the sentence on your screen, nothing is wrong with House of The Locust.
The comparison is made against this game's own label, which the Roblox listing reports as moderate. Roblox's Content Maturity Ratings article defines Moderate as content that may contain “moderate violence, light realistic blood, moderate crude humor, unplayable gambling content, social hangouts without private spaces, free-form user creation such as in-game drawing tools, and/or moderate fear”. A horror escape game sitting at Moderate is expected; what varies per player is the ceiling set on the account.
If the account is a child accountRoblox's Content Maturity FAQ gives the path: sign in with a parent account linked to the child account, open Settings, select Parental controls, choose the child account, scroll to Settings you manage, open Content restrictions, then Content maturity, and raise the level. The same article states that Roblox Kids and Roblox Select are account types for users under 16 that match younger players with age-appropriate games by default, so an under-16 account can be blocked without anyone changing a setting by hand.
One more line from Roblox's own labels article matters if the account looks correctly configured: “Access to some content, features, and games may also depend on region and account settings.” That is why the authoritative answer for your case is the maturity panel on the game page you open, signed in with your own account — not a fixed age number copied from any guide, including this one. The age and content page covers what the game's label actually contains.
2. Error Code 524: Permission, Not Content
A different message needs a different fix. Roblox's help centre article is titled Error Code 524: You do not have permission to join this game and lists four causes: privacy settings that restrict private servers, a server you have not been invited to, a game or server that is temporarily unavailable, and network or device glitches. Its own recommended order is private-server settings first, then server permissions, then a full restart, then server availability.
Two of those four collapse for this game. The official listing reports createVipServersAllowed false, so there is no VIP server of House of The Locust for anyone to invite you to, and the practical remaining checks are the restart and the server-availability ones. Roblox also notes in that article that the platform is not supported on virtual machines, cloud-based computers, or mobile devices running altered or unofficial system versions, and that a connection of roughly 4–8 Mb/s or above is expected — worth ruling out before assuming the game is down.
3. No Join Button At All
When the page loads but the play control is missing or grey, the two explanations worth testing are capacity and the maturity gate above. The listing publishes a 50-player server cap for this experience, and it has no private servers, so every player competing for a slot is competing for a public one: at peak hours a full server list is normal rather than a fault. The multiplayer guide explains how server selection and co-op joining work here.
If other experiences launch normally on the same account and only this one refuses, capacity and the maturity label are the two documented differences between them. If nothing launches, the problem is the client or the connection, and neither this page nor the game listing can fix it.
4. What This Page Cannot Tell You
- Whether your account is the one being blocked. The maturity level set for an account is only visible after signing in, so the answer is on your own game page.
- Whether a shutdown happens later. The status block is a dated snapshot: it rules out a global takedown at 2026-10-28, not tomorrow.
- Why an individual session failed. No join attempt was made while writing this page, and a server-side kick or a local network fault leaves no public record either.
Community uploads about this symptom describe it two ways — a page that never shows Join, and an explicit unavailable message — which is why the checklist above starts with the exact wording. If the game opens and you are simply stuck inside it, the problem is not joining: use the escape walkthrough or the first-run orientation instead.