GuakRogueWaves

Multiplayer-synced cinematic rogue waves for Valheim.

This mod makes the ocean feel more alive: long smooth swells, scary boat climbs, storm chaos, and rare thunderstorm giga waves. It does not add the creepy leviathan/roar system yet.

What It Does

• Normal waves randomize from 15 to 45 ft.
• Normal waves are long rolling swells, not sharp invisible spikes.
• Normal waves can pitch the boat hard, but the stabilizer dampens violent roll/spin.
• Wave pacing changes by weather: calm is slower, bad weather is busier, thunderstorms are tense.
• Giga waves randomize from 50 to 80 ft.
• Giga waves only attempt during thunderstorm/open-ocean conditions by default.
• Giga waves can damage boats near the crest; bow-on is safer than broadside.
• Storms get a bit more chaotic through wind intensity.
• Ocean thunderstorm weather can be made slightly more common.
• Events sync through Valheim RPC so friends see the same wave event.

Shore/Base Rule

If you are far inland, rogue waves stop. If you are near the ocean or a large water source, default 100 ft, the ocean can still show cinematic wave activity so shore bases get the view.

The mod only changes water height, ship physics, weather weighting, and boat damage from giga waves. It does not target or damage player-built lights, buildings, docks, chests, portals, crops, or other placed pieces.

Useful Config

After first launch, edit:

BepInEx/config/eden.valheim.roguewaves.cfg

Key settings:

• NormalMinHeightFeet
• NormalMaxHeightFeet
• ShoreSpectacleDistanceFeet
• NormalWaveBoatStabilizer
• NormalWaveBoatStability
• AllowNearVerticalPitch
• GigaMinHeightFeet
• GigaMaxHeightFeet
• GigaChancePercentPerAttempt
• GigaDamageEnabled
• StormWindChaosMultiplier
• ThunderstormWeightMultiplier

Changelog

2.0.1

• Added shore spectacle gating: waves stop far inland but still work near shore bases and large water.
• Keeps placed structures untouched; giga damage only applies to boats.

2.0.0

• Rebuilt the mod around randomized 15-45 ft normal waves and 50-80 ft giga waves.
• Added weather-based wave pacing.
• Added normal-wave boat stabilization with near-vertical pitch allowed.
• Added thunderstorm/open-ocean gated giga waves.
• Added giga boat damage based on crest hit, boat class, and bow/broadside alignment.
• Added storm wind chaos and configurable ocean thunderstorm weighting.
• Added screen shake and safer multiplayer RPC validation/rebroadcasting.

1.3.1

• Added offshore-only wave gating so rogue waves stop on land and near shore.
• Added MinDistanceFromShoreFeet, defaulting to 100 ft.
• Documented that the mod does not damage placed buildings, lights, or other player-built pieces.

1.3.0

• Reworked normal waves into very long cinematic swells.
• Added regular-wave boat stabilization so normal waves should not be the boat-killer.
• Added rare GIGA ROGUE WAVE events gated behind Ocean biome and thunderstorm conditions.
• Added config for giga chance, giga size, giga timing, giga ocean check radius, and regular-wave boat stability.

1.2.0

• Waves now spawn near the local player instead of only while controlling a ship.
• Reworked the wave shape into a wider, slower rolling swell so it looks bigger and hits boats less sharply.
• Added SpawnDistanceMeters.

1.1.1

• Repacked for public Thunderstore upload after initial version conflict.

1.1.0

• Added multiplayer wave sync using Valheim routed RPC.
• Added SyncWaves config.
• Packaged as an r2modman/Thunderstore-style local mod zip.

1.0.0

• Initial rogue wave water-height patch.