Sunset notice — Impact will soon be deprecated in favor of Vape Rewrite This page will soon mark Impact as effectively sunset and points contributors and users toward Vape Rewrite, a new utility userscript being developed by the same team. Vape Rewrite is intended to be the single, actively maintained Miniblox utility mod (inspired by Spherical). It focuses on more modules, a ClickGUI, lag modules (i.e. FakeLag), and other improvements that are difficult to maintain in a single-file client. If you're using Impact, please consider testing Vape Rewrite when we release builds. Impact will still be maintained (by everyone except @6x68 / bab) until Vape Rewrite is considered ready for use and out of beta. Also, if you need a client that can be injected via developer console and bookmarklets, ballcrack is an alternative to Impact. Note that it is missing some features (i.e. Velocity, ChestStealer, and etc.), but it is an alternative to consider.

Impact V9 for Miniblox!

The ultimate Miniblox hacked client. Built for stealth, speed, and total domination. Fully dark-mode optimized with a modern UI and high performance.

Impact V9 is powered by plain JavaScript — no frameworks, just raw code and creativity. It leverages custom APIs and runtime hooks to implement advanced client modifications in real time.

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How JavaScript Enables Client-Side Hacking

Impact V9 uses JavaScript to directly intercept and alter game packets at runtime. This is done through a system of hooks and modifications, where JavaScript functions inject new logic into game code dynamically.

For example, the following snippet modifies the behavior of CPacketEntityVelocity to reduce knockback:

addModification('"CPacketEntityVelocity",h=>{const p=m.world.entitiesDump.get(h.id);', `
  if (player && h.id == player.id && enabledModules["Velocity"]) {
    if (velocityhori[1] == 0 && velocityvert[1] == 0) return;
    h.motion = new Vector3$1($.motion.x * velocityhori[1], h.motion.y * velocityvert[1], h.motion.z * velocityhori[1]);
  }
`);

Another example disables sprint interruption using the KeepSprint module:

addModification('g>0&&(h.addVelocity(...),this.motion.x*=.6,this.motion.z*=.6)', `
  if (g > 0) {
    h.addVelocity(...);
    if (this != player || !enabledModules["KeepSprint"]) {
      this.motion.x *= .6;
      this.motion.z *= .6;
      this.setSprinting(false);
    }
  }
`, true);

This method allows for modular control over client behavior (like Velocity, NoSlowdown, KillAura, Step, WTap), making the client fast, lightweight, and easy to extend — all with plain JavaScript.