mcsow
by violynos
mcsow brings Warsow and Warfork style movement to Minecraft, changing how players run, dash, jump and strafe across the block grid.
What it does
The mod replaces vanilla player motion entirely. Instead of layering extra input on top of the default travel code, it runs a direct port of the Warsow pmove.c physics, which makes air-strafing, bunnyhopping, dashing and walljumping possible. Some constants are deliberately retuned so the movement fits Minecraft's scale, its 20 ticks per second and its block grid, rather than being copied one to one.
Gravity and jump values are a baseline that departs from Warsow on purpose, scaled to the feel of Minecraft. Vanilla effects such as Speed, Soul Speed, Jump Boost, Swift Sneak and sprinting, as well as the movement-speed attribute, still change how far the player moves under this physics. Settings can be changed in an optional in-game configuration screen when Mod Menu is installed.
mcsow is a Fabric mod that requires Fabric Loader 0.16.0 and Fabric API for Minecraft 1.21.11. It is required on the server and optional for players. It is released under the GNU Lesser General Public License v3.0 or later and is open source, with source code and an issue tracker published.
Key features
Warsow pmove physics
A port of the Warsow movement code drives player motion, including air-strafing and bunnyhopping.
Tuned dash
The dash goes further than Warfork's, tuned to cover about half a block so it sits well with Minecraft's ground and walls.
Crouch-jumping
Crouch-jumping trades horizontal speed for height, which helps players handle awkward terrain precisely.
Vanilla modifiers
Players keep the effects of Speed, Soul Speed, Jump Boost, Swift Sneak and sprinting, and the movement-speed attribute still applies to their movement.
In-game configuration
Most tunable values can be adjusted in a configuration screen reached through Mod Menu.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Rambo's Jump'n Dash is a Fabric mod for 1.21.11 that is client and server and is released under All rights reserved, so it is not open source. Movement Update is also a Fabric mod for 1.21.11 with a client and server environment, but it is open source under the GNU General Public License v3.0 only. Massmotion is server required with client optional, under the MIT License, and is not open source.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| mcsow | Fabric | 1.21.11 | Server required, client optional | 2026-07-04 |
| Rambo's Jump'n Dash | Fabric | 1.21.11 | Client and server | 2026-08-26 |
| Movement Update | Fabric | 1.21.11 | Client and server | 2026-08-18 |
| Massmotion | Fabric | 1.21.11 | Server required, client optional | 2026-01-22 |
Questions
Does mcsow need Fabric API?
Must players install mcsow to join a server?
Can the movement be adjusted?
In the catalog
mcsow is one of 29,952 Game mechanics mods on ModsFinder, and one of 19,630 Game mechanics mods for Fabric. 19,862 mods support Minecraft 1.21.11.
Similar mods
What the author says
mcsow is a Minecraft mod that implements Warsow)/Warfork movement in Minecraft as faithfully and cleanly as possible. It replaces vanilla player motion entirely — cancelling travel() in a mixin and running a direct port of Warsow's gs_pmove.c physics — so you get real air-strafing, bunnyhopping, dashing, and…
Official listing
- Modrinth page
- modrinth.com/mod/mcsow
- Owner
- violynos
- Published
- 2026-07-03
- Updated on Modrinth
- 2026-07-04
- Facts verified
- 2026-10-15