Kestrel ESP (WallHack)

First release for Minecraft 1.21.11 on MinecraftForge. Same mod and the same settings as the NeoForge and Fabric builds for this version — Forge is simply a separate loader, and a jar for one does not load in the other.

What it does

• Glowing outline in any colour, with options for "only when behind a block" and for ringing only the hidden part, worked out per pixel.
• Hitbox boxes — a wireframe in the entity's colour, with its own visibility rule.
• See-through models with their real textures at 5–100% brightness, per-pixel mode included.
• Name tags readable through terrain in the group's colour, with the game's own plate suppressed.
• Outline thickness, and thinning it out at distance, so a crowded screen stays readable.

Everything is set per mob type and per player group.

Notes for this loader

Forge has no event for the points inside the level pass that this mod needs, so they are taken directly, and the mod's render pipelines are registered the same way the Fabric build does it. The jar is client-only and is skipped on dedicated servers.

Requires Forge 61 or newer and Java 21.