Release v1.9.1

Fabric PvP for Minecraft Java

A free Fabric client with a clean HUD, Modrinth inside the launcher, and Microsoft login. No cheats. No telemetry.

Windows 10 and 11. ~ MB installer. Auto updates from the same channel as the in game mod.

In 1.9.1
What ships in this release.
Featured partner Champ SMP at champ.smp.quest
Instance memory slider fix and full screen wardrobe, servers, logs
Draggable 3D skin preview and Modrinth icons for installed mods
Discord bot assigns the rivers member role automatically
Fabric 1.21.11, Microsoft login, Modrinth in the launcher

Built for clean PvP

Visual modules and small conveniences. Reach readout matches vanilla. Tokens stay on your machine.

HUD

FPS, CPS, ping, potions, armor, coordinates, zoom. Every module is draggable in the editor.

Launcher

Instances, Microsoft login, content browser, themes, friends list, and LAN address when you host.

Text effects

Glow, rainbow, wave, and shimmer on HUD labels with a live preview right in the menu.

Modrinth

Search and install mods, modpacks, and shaders without leaving the launcher.

Safety

Visual modules only. No injection, no anticheat bypass. Your Microsoft tokens stay local.

Updates

One click launcher updates. The matching mod jar ships from the same release feed.

Interface

Launcher and in game screens from v1.9.

Partners

Servers and communities we work with.

Champ SMP

Featured

Altar and ranked SMP with custom mechanics, spear-focused combat, events, and maps tuned for skill-based PvP.

champ.smp.quest

Source visible

Microsoft sign-in is open and verifiable

River Client only talks to the official Microsoft and Mojang endpoints during sign-in. Your refresh token and Minecraft access token are stored locally on your machine and never sent anywhere else.

Device-code flow

Login uses Microsoft's devicecode + token endpoints. You confirm the code in your browser. The launcher never sees your password.

Xbox + XSTS

Standard Xbox Live and XSTS handshake using user.auth.xboxlive.com and xsts.auth.xboxlive.com. Same flow Mojang's own launcher uses.

Minecraft profile

Tokens go to api.minecraftservices.com for ownership check and profile. Stored on disk in your launcher data folder.

Read the actual sign-in source

The exact JavaScript that runs in the launcher's main process is published verbatim. Open it in your browser or download the file.

v1.9.1 live

Download River Client

Windows 64 bit. The installer keeps the launcher up to date. The game loads the matching mod from the same feed.

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