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

Changelog

1.0.0

• Current public release candidate for Thunderstore.
• Configurable rowing, half sail, and full sail speed multipliers.
• Optional normal speed limit and storm speed limit.
• Passenger rowing can multiply rowing force by the number of players on the ship.
• Rowing UI indicator shows the active player multiplier.
• Added AI-assisted creation disclosure to the README and assembly metadata.
• English release documentation and config descriptions.