Small launcher · Separate updates

Get ready to drop in.

One small launcher finds your existing game, checks for updates, and downloads only the files that changed.

Install once. Stay up to date.

  1. Close your game. Keep Steam running.

    You need the supported original Prospect installation. The launcher adds the multiplayer client and maps.

  2. Download and run the launcher.

    It reads ReCycle’s configured game folder and finds Steam content/depot installs used by Singleplayer Cycle. Choose the copy you want from the numbered terminal menu, or use the native Windows folder picker.

    You can also put it beside Prospect-Win64-Shipping.exe in Prospect\Binaries\Win64 to select that copy directly.

  3. Choose Play, or Install / Update.

    It verifies the signed release and downloads only changed files. ReCycle’s added paks and singleplayer mod files are parked safely while multiplayer is installed. Interrupted downloads resume next time.

  4. Keep using the launcher.

    Choose 1 — Play to update the game and launch it. Choose 8 — Update this launcher to download, verify and reopen a newer launcher automatically. Keep Steam running.

    Your chosen game folder and release are remembered for this Windows user. Next time, press Enter or 1 to reuse them. Use 4 to change the game folder, or F to forget saved choices.

    Game connections use Playit relay over IPv4. No connection-mode selection is needed.

Want to return to ReCycle or Singleplayer Cycle? Close the game, run this launcher, and choose 6 — Uninstall. It removes our overlay and restores your original files and parked mods. Uninstall also works with --uninstall and needs no internet.
Already using the v86 setup?

Close the game, put this launcher beside the same game EXE, and run it. Keep your installed files in place: they are verified and reused. The first launcher release only adds Reyna’s approximately 20 MB pak.

Your old setup backups are preserved. Uninstall restores the installation state captured when you first used this launcher. Stop using the old toggle while the new overlay is installed.

How large are the downloads?

The launcher itself is about 0.6 MB. A fresh multiplayer installation downloads approximately 1.63 GiB of maps and client assets once. Later updates download only changed files; updating a small cosmetic pak does not download the unchanged map pak.

What does the launcher verify?

It verifies ECDSA-signed release metadata and each file’s SHA256, uses normal HTTPS certificate validation, and refuses unsafe paths, older releases, and externally changed managed files. It supports normal and administrator launches. It never elevates itself, installs certificates, asks for antivirus exclusions, or requires .NET.

It never runs downloaded scripts. The initial launcher is not Authenticode signed; use this official download and compare its SHA256. No software can promise zero bugs.

It refuses to update

Close the selected game client, use the physical game folder, and check that the full supported original installation is present. Use a physical game folder. If Windows denies access to that installation, Run as administrator is supported. Use the same Windows account that originally installed the multiplayer overlay.

The known singleplayer UE4SS/mod files are parked automatically. Do not run another launcher against this same game copy while multiplayer is installed. If a managed file changed outside our launcher, it stops and preserves it for review. Keep the exact error if it stops. It never kills your game or installs an unverified download.