Sailwind Fast Forward

Fast-forward long voyages at 2x, 4x or 8x. Your ship, weather and survival needs keep running, with a configurable speed limit when moving around your boat or checking inventory.

Press F7 to cycle 1x → 2x → 4x → 1x with the default settings. A small label shows the active speed.

Installation

BepInEx 5 is required. If your r2modman profile already has BepInExPack, use that installation.

Once listed on Thunderstore, install Sailwind Fast Forward through r2modman and launch with Start modded. BepInExPack is installed automatically as a dependency.

For manual installation with Sailwind closed, extract the release ZIP and copy its plugins/SailwindFastForward folder into your profile's BepInEx/plugins folder. In r2modman, Settings → Browse profile folder opens the right location. Launch using Start modded.

To update an earlier test build, replace its SailwindFastForward.dll; keep only one copy of the plugin. Existing configuration carries over. To uninstall, remove the plugin folder with the game closed. The mod adds no save fields; gameplay progress made during fast-forward saves normally.

Configuration

After the first launch, edit BepInEx/config/local.sailwind.fastforward.cfg with the game closed, then restart.

Set MaxSpeed to 8 for 1x → 2x → 4x → 8x → 1x.

The movement/inventory limit applies to the whole simulation. At the default 2, walking or opening inventory at 8x drops speed to 2x. Set it to 1 to cancel fast-forward during those activities, or 8 to allow every supported speed. It never exceeds MaxSpeed or raises your current speed. Stopping movement or closing inventory leaves the reduced speed in place until you cycle again.

While moving or viewing inventory, F7 cycles only through the allowed speeds. With a 2x limit, that means 1x ↔ 2x. Movement uses your walk/strafe/jump bindings and enabled gamepad movement input. Being carried along by the boat does not count; looking around, steering and adjusting sails alone do not count unless their controls are also bound to movement.

Game behavior

• Fast-forward stays active when alt-tabbing and during normal island streaming. The game is allowed to run in the background while fast-forward is active.
• Settings and other menus cancel fast-forward. Player inventory/stats uses the configured limit instead.
• Saving (including autosave), loading, entering bed, sleep/recovery and full world transitions cancel fast-forward. Reactivate it afterward as needed.
• Native pause and sleep retain the game's own timing. The mod changes simulation speed without changing the physics timestep, survival rates or day-length settings.

Higher speeds ask the game to do more work per real second. Choose a maximum that runs well on your system. Ordinary 2x sailing and brief 4x/8x sailing were play-tested, including movement, sails, steering, cargo and inventory handling; heavy storms and demanding high-speed collisions were not exhaustively tested. Survival drain during acceleration was confirmed in logs. Desktop single-player is the tested target; VR and combinations with other simulation-speed mods are untested.

Source and support

Visit the source repository, build instructions and validation notes. When reporting a problem, include the game/mod versions, what you were doing, your configuration and the relevant BepInEx/LogOutput.log excerpt.

Copyright 2026 skeptic043. Released under the MIT License.

Changelog

1.1.2

• Cycle and hold speeds are now independent. Keep a 1x/2x/4x cycle and use 8x while holding, or choose any other supported combination.
• Removed the game-build lockout. FF no longer disables itself just because a Sailwind update or beta changes the game assembly.
• Save-coroutine detection now tolerates compiler-generated renumbering.
• If the optional save hooks no longer match, FF stays available and logs a warning. All saves then cancel FF, including hold mode, instead of preventing the mod from starting.

1.1.1

• Holding FF now keeps the configured hold speed through movement, inventory, ordinary menus and manual saves. The movement/inventory limit still applies to cycle mode.
• Hold mode follows the shortcut state reported by the game. Pause, loading, reset and loss of speed ownership still cancel it. Autosaves retain the existing configurable behavior.
• Fixed lowercase and spaced shortcut names, including o and left shift + mouse 4. Modifiers can appear before or after the main key.
• Invalid shortcut text is retained with a clear log warning instead of being overwritten with an empty binding. Existing valid settings carry over. Re-enter any value already erased by an older version.

1.1.0

• Added F8 to return directly to 1x from any fast-forward speed.
• Added hold F9 for fast-forward, with a configurable hold speed of 2x, 4x or 8x. The default is 4x. Existing speed limits still apply, and releasing the key returns to 1x.
• All three shortcuts support modifiers. Configuration help now uses consistent wording and examples. Leave a shortcut value blank to disable it.
• Existing custom settings are preserved. A new shortcut starts unassigned if its default key is already used by an existing shortcut.
• Reset takes priority over hold and cycling. After cancellation, hold requires release and a fresh press before accelerating again.
• Autosaves retain the existing configurable behavior. Save-coroutine errors now cancel fast-forward without changing the game's save state or hiding the error.
• Added compatibility checks for the inspected Sailwind save path. An uninspected game update disables FF pending compatibility review.

1.0.1

• Added CancelOnAutosave, off by default. Fast-forward now continues through timer-triggered autosaves unless this setting is enabled.
• Updated the README with r2modman, Thunderstore Mod Manager and manual installation instructions, plus clearer controls and configuration guidance.

1.0.0

Initial release.

• Configurable hotkey cycles normal speed and 2x/4x/8x simulation.
• Small indicator shows the active speed.
• Configurable speed limit when moving or opening player inventory/stats.
• Fast-forward continues during alt-tab and routine island streaming.
• Settings, save/load and sleep handling return control safely to the game.
• No changes to save data, survival rates, day-length settings or physics timestep.