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WallJumpBF

by PowCreations

WallJumpBF is a Fabric fork of WallJumpTXF that adds Bannerfall SMP plugin support, letting players jump again while airborne and off walls.

FabricClient-side onlyGNU General Public License v3.0 onlyOpen source1.21.9 – 1.21.11

What it does

Players gain extra jumps and wall movement: a second jump is performed by pressing jump midair, wall sliding slows a fall against a wall, and a wall jump launches the player off the surface. The configuration for wall sliding, double jump speed boost and step assist works the same way as in the original WallJumpTXF.

On Bannerfall SMP servers the mod is gated by a potion effect. A player can only leap off a wall while the Unluck potion effect is on them, and the cap on wall jumps for each player comes from the bannerfall rogue walljumps scoreboard objective, so a server can adjust every player's allowance on the fly. Without the effect, wall jumping is unavailable.

The mod is client-side only, so only the client needs it and servers run without it. The code is open source under the GNU General Public License v3.0 only, with the source code published. Files target 1.21.9, 1.21.10 and 1.21.11, and the latest Fabric file, 1.0.2, is for 1.21.11.

Key features

  1. Double jump

    Pressing jump in midair performs an additional jump, adding a second air action to a normal jump.

  2. Wall sliding and wall jumps

    Players slide down walls at a reduced rate and can jump off them, with the same settings as the original mod.

  3. Bannerfall rogue allowance

    Wall jumps are limited per player by a scoreboard objective, which the server can change while the game runs.

  4. Potion-gated jumping

    Wall jumping only works while the Unluck potion effect is active, so access can be given or taken away.

Compatibility

Latest build for each game version and loader.

1.21.111.0.2
1.21.101.0.2
1.21.91.0.2
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Bannerfall SMP play

Players on a Bannerfall server use the mod with the Unluck effect and the rogue scoreboard allowance to control wall jumping.

Who it’s for: Players on Bannerfall SMP servers who use the Fabric loader and want wall jumping controlled by the server's potion effect and scoreboard settings.

Questions

Does WallJumpBF need to be installed on the server?

No. It is installed on the player's side alone, so servers need nothing.

Which loader does WallJumpBF use?

WallJumpBF is published for Fabric only, with files for 1.21.9, 1.21.10 and 1.21.11.

How is the wall jump allowance set?

The per-player wall jump limit is pulled from the bannerfall rogue walljumps scoreboard objective, a value a server can modify while the game runs.

What the author says

Everything else: wall sliding, double jump, speed boost, step assist and configuration, works the same as the original. Licensed under GPL-3.0, as the original. Full credit to jahirtrap for the base mod.
PowCreations, on the Modrinth page

Official listing

Owner
PowCreations
Published
2026-04-11
Updated on Modrinth
2026-04-25
Facts verified
2026-10-15