Keeping an archived 800-star Roblox tool alive: MultiAlt, in Rust and Tauri

Roblox Account Manager, crafted by ic3w0lf22, helped thousands of players manage multiple Roblox accounts on a single PC. Its final release boasted over two million downloads. However, in October 2024, its source code was archived. Enter MultiAlt, an actively maintained project built on Rust, TypeScript, and Tauri, carrying on the legacy of the original tool.

MultiAlt allows users to keep every Roblox account signed in, open multiple Roblox clients simultaneously, and manage groups of accounts within the same server or follow friends into their servers. The application features an AFK mode and Auto Rejoin, imports old Roblox Account Manager account files, and supports English, Portuguese, and Spanish UI.

Underneath the hood, MultiAlt incorporates encrypted storage by default, using either the user's password or a device key stored alongside the data file. This ensures that copied files remain secure. Unlike its predecessor, MultiAlt does not rely on admin privileges or auto-updates. It employs a per-user MSI installer that updates itself, and while it scans at 0/75 on VirusTotal, it avoids killing other clients. The application holds Roblox's singleton mutex on an opt-in basis, allowing other accounts to remain open.

The server finder in MultiAlt respects group sizes, selecting the most suitable server that can accommodate the entire group with a spare seat. It requests the appropriate sort order from Roblox's API rather than resorting to re-sorting a single page. The project is available in three languages to cater to Roblox's massive audience in Brazil and Latin America.