SmashCraft

Each entity tracks a damage percentage that rises with every hit it takes. The percentage multiplies the damage dealt and increases the knockback, so a target at high percentage flies farther with each blow. A colored HUD bar shows the current percentage, shifting from green toward red as the number climbs, and the same value appears on the scoreboard below player names.

Hits can land as critical hits, which multiply the knockback further. Eating food heals 15% of accumulated damage, so timing meals matters in a fight. When an entity's percentage passes 150%, each hit carries a rising chance of a KO launch into the stratosphere, and every hit at 250% or higher triggers one. Grab swords charge smash attacks, ledge grabbing can be turned off through a rule setting, and the blast zone sends a knocked-out player away from the arena.

Players and server owners install SmashCraft on both sides, since the mod uses custom networking packets to sync percentage bars, shield particles and KO screenshake in real time. Files are published for Fabric only, across four game versions 26.1 – 26.2, and the code is released under the MIT License as open source.