Bouncier Slime

Name: Bouncier Slime
Author: TheKingOfNerds

Bouncier Slime changes how slime blocks and projectiles interact, so arrows and other projectiles bounce off slime instead of landing.

FabricForgeNeoForgeQuiltServer required, client optionalGNU General Public License v3.0 only1.21.5 – 26.3

What it does

Projectiles that strike a slime block rebound rather than stopping in place, which changes how slime surfaces behave in combat and in redstone-style setups. A roof built from slime blocks can redirect mob projectiles back toward their shooters. The mod also extends the range of potions and arrows, and adds a mini-game in which a wind charge is launched at a goal and a button is struck to score.

Bouncier Slime is a server required mod: the server must run it, while a client may leave it out and still join. It is released under the GNU General Public License v3.0 only, which is not open source. Builds cover 1.21.5 – 26.3 for Fabric, Forge, NeoForge and Quilt, and a data pack version is also available.

Key features

Bouncing projectiles
Arrows and other projectiles rebound from slime blocks instead of landing where they hit.
Slime roofs redirect fire
A roof of slime blocks sends mob projectiles back the way they came, protecting the space below.
Longer potion and arrow range
Thrown potions and arrows travel farther than in vanilla play.
Wind charge mini-game
Players launch a wind charge toward a goal and hit a button to complete the challenge.

Gallery

Three arrows bouncing · Technically not the exact trajectory, but the arrows' positions were designed to show how the bouncing looks

Compatibility

Latest build for each game version and loader.

Version

26.x5 of 5 versions with builds

26.3v1.1+modv1.1+modv1.1+modv1.1+mod

26.2v1.1+modv1.1+modv1.1+modv1.1+mod

26.1.2v1.1+modv1.1+modv1.1+modv1.1+mod

26.1.1v1.1+modv1.1+modv1.1+modv1.1+mod

26.1v1.1+modv1.1+modv1.1+modv1.1+mod

1.21.x7 of 7 versions with builds

1.21.11v1.1+modv1.1+modv1.1+modv1.1+mod

1.21.10v1.1+modv1.1+modv1.1+modv1.1+mod

1.21.9v1.1+modv1.1+modv1.1+modv1.1+mod

1.21.8v1.1+modv1.1+modv1.1+modv1.1+mod

1.21.7v1.1+modv1.1+modv1.1+modv1.1+mod

1.21.6v1.1+modv1.1+modv1.1+modv1.1+mod

1.21.5v1.1+modv1.1+modv1.1+modv1.1+mod

ReleaseBetaAlphaNot available

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

Use cases

Defensive builds

Slime roofs over a base return incoming mob fire, which suits defensive builds in survival worlds.

Adventure maps

The wind charge challenge can serve as a puzzle or minigame element on adventure maps.

Who it’s for: Server owners who want slime blocks to behave differently and players who build defenses or play the included mini-game.

Questions

Does Bouncier Slime need to be installed on the client?

No. The server must run it, while players may leave it out.

Which loaders does Bouncier Slime support?

Fabric, Forge, NeoForge and Quilt. Files for 26.3 were last updated on 2026-10-07 for all four loaders.

Can Bouncier Slime be used on a server without a mod loader?

Yes. A data pack version is also available for servers that run without a mod loader.

In the catalog

Bouncier Slime is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 8,071 mods support Minecraft 26.3.