ShipTweaks

ShipTweaks is a standalone Valheim BepInEx 5 mod for configurable ship speed and rowing behavior.

Status

This release has been tested in multiplayer, but ship physics can still vary with latency, world load, and other ship-related mods. Back up important worlds before using it on a long-running server.

AI Disclosure

This mod and Thunderstore package were created with AI assistance. OpenAI Codex was used to help generate code, package structure, and documentation.

Features

Configurable multipliers for rowing/reverse, half sail, and full sail.
Optional normal hard speed limit and separate thunder/storm speed limit.
Normal rowing/reverse force can be multiplied by the number of players on the ship.
While rowing, xPlayerCount is shown next to the ship speed icon.
No seat, W/S, or extra oar mechanics.
PaddlePower-compatible approach: existing ship values are changed only temporarily per physics tick.

Configuration

After first launch, edit:

BepInEx/config/domen.valheim.shiptweaks.cfg

Simple settings:

RowSpeedPercent
HalfSailSpeedPercent
FullSailSpeedPercent
MaxSpeedLimit
StormSpeedLimit
PassengerRowingEnabled

If PassengerRowingEnabled = true, rowing uses:

Rowing force = vanilla rowing force * RowSpeedPercent / 100 * players on ship

Example: RowSpeedPercent = 100 and 3 players on the ship gives 3x vanilla rowing force. RowSpeedPercent = 150 and 3 players gives 4.5x vanilla rowing force.

Default values:

RowSpeedPercent = 150
HalfSailSpeedPercent = 125
FullSailSpeedPercent = 150
MaxSpeedLimit = 0
StormSpeedLimit = 0
PassengerRowingEnabled = true

For MaxSpeedLimit and StormSpeedLimit, 0 means ShipTweaks does not apply an additional hard speed limit. It does not mean 0 m/s. Valheim still limits ships through physics, wind, mass, and water resistance.

Vanilla reference values:

Raft: paddle 1.6 m/s, half sail 1.7-2.2 m/s, full sail 2.2-3.1 m/s
Karve: paddle 3.14 m/s, half sail 2.8-4.8 m/s, full sail 3.9-7.0 m/s
Longship: paddle 3.16 m/s, half sail 3.6-6.7 m/s, full sail 5.0-9.75 m/s
Drakkar: paddle 2.50 m/s, half sail 3.3-6.2 m/s, full sail 4.65-8.9 m/s

Multiplayer

Install ShipTweaks on the server and on all clients that should experience the same ship behavior and UI indicator.

Build

.\Build-Package.ps1
.\Install-Local.ps1

Details

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