Solid Mobs
by Traben
Solid Mobs lets living mobs collide with players and blocks, so entities can be stood on and pushed like solid objects, with a set of configurable options for the behaviour.
What it does
Mobs gain collision interactions similar to blocks, which boats already have in vanilla. Standing on a mob or riding one carries the player along with it, and holding crouch keeps a player on a moving mob instead of sliding off. Most living mobs collide by default, with a few exceptions such as the Ender Dragon, which the author notes behaves a little differently. Which mobs collide is set in the config, and a command lets an operator change the settings in-game without editing files.
The options cover more than plain collision. Fallen mobs can take a percentage of fall damage, slimes can be made bouncy like slime blocks, specific mob types can be excluded from collisions, and a mob can be set to collide only from the top, so it works like a platform. The mod runs on Fabric, Forge, NeoForge and Quilt, and it is open source under the GNU Lesser General Public License v3.0 only. Snapshot builds are published for testing.
Key features
Mob collisions
Living mobs collide like blocks, so players can stand on them and bump into them as with solid objects.
Bouncy slimes
An option makes slimes bounce like slime blocks when the player lands on them.
Fall damage percentage
Fallen mobs take a configurable share of fall damage instead of the vanilla amount.
Top-only collision
Mobs can be set to collide only from above, so they act as platforms for players.
In-game commands
A command lets operators view and change the mod's settings during play, without restarting.
Compatibility
Latest build for each game version and loader.
1.21.x4 of 4 versions with builds
1.20.x6 of 6 versions with builds
1.19.x5 of 5 versions with builds
1.18.x3 of 3 versions with builds
This mod also publishes snapshot builds. Snapshots are not shown in the matrix.
Use cases
Who it’s for: Players and server owners who want mobs to behave like solid blocks, mainly in creative builds, parkour maps and modded experiments. The mod changes gameplay for every entity it touches, so it suits worlds where that is intended.
How it compares
Solid Entities is a Fabric-only client and server mod for 1.21.11 under the Creative Commons Attribution Non Commercial Share Alike 4.0 license, not open source. BouncyCraft is published for Fabric, Forge and NeoForge across 1.16.5 – 1.21.4, client required with the server optional, under All rights reserved. Float Blocks is open source under the MIT License for 1.19 – 1.19.3, and only the server needs it.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Solid Mobs | Fabric, Forge, NeoForge and Quilt | 1.18 – 1.21.5 | Client and server | 2025-05-28 |
| Solid Entities | Fabric | 1.21.11 | Client and server | 2025-12-13 |
| BouncyCraft | Fabric, Forge and NeoForge | 1.16.5 – 1.21.4 | Client required, server optional | 2024-12-26 |
| Float Blocks | Fabric, Forge and Quilt | 1.19 – 1.19.3 | Server required, client optional | 2023-03-24 |
Questions
Does Solid Mobs need to be on the server?
Which loaders does Solid Mobs support?
Can the settings be changed without restarting?
In the catalog
Solid Mobs is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 15,307 mods support Minecraft 1.21.5.
More from Traben
Similar mods
What the author says
A Minecraft Fabric mod that gives entities collisions and interactions like blocks or boats already do. Standing on a mob has you move with them, and you can hold crouch to stick to the mob and not fall off (as can happen with high lag).
Official listing
- Modrinth page
- modrinth.com/mod/solid_mobs
- Owner
- Traben
- Published
- 2022-06-11
- Updated on Modrinth
- 2025-05-28
- Facts verified
- 2026-10-15