JuvenileGrowthTweaks
Speed up (or slow down) the growth of any Growup juvenile and choose how often growth is checked. Multiplayer-safe, growth progress shown by other mods stays correct.
About this mod Author’s original text
JuvenileGrowthTweaks
Speed up (or slow down) the growth of any juvenile creature that uses Valheim's vanilla Growup component — tamed animal offspring, Elemental Dragons growth stages, modded juveniles — and choose how often the game checks whether a juvenile is ready to grow up.
English
What it does
- Growth speed multiplier — the creature's grow time is divided by this value. 10 turns a 3000 s (50 min) juvenile grow time into 300 s (5 min). 1 = vanilla, 0.5 = twice as slow.
- Growth check interval — vanilla checks every 10 s (the first check happens 10–15 s after spawn). The default here is 5 s, so the moment of growing up is precise without checking more often than needed.
Everything else stays vanilla: swapping to the adult prefab, ownership (IsOwner), ZNetView.Destroy, inherited taming and level are untouched.
Configuration
File: BepInEx/config/soulemper0r.juvenilegrowthtweaks.cfg
| Section | Key | Default | Range | Description |
|---|---|---|---|---|
| General | Enabled | true | — | Master switch. Off = vanilla grow time and 10 s checks |
| General | GrowthSpeedMultiplier | 10 | 0.1 – 1000 | Grow time divisor: 10 = 10× faster, 1 = vanilla, 0.5 = 2× slower |
| General | CheckIntervalSeconds | 5 | 0.5 – 60 | How often growth is checked (vanilla: 10 s) |
| Debug | DetailedLogging | false | — | Log every juvenile whose growth timer was adjusted |
Both numbers are sliders when Configuration Manager is installed.
Example: with GrowthSpeedMultiplier = 10 a TameCraft boar / wolf / lox juvenile (3000 s vanilla grow time) matures in about 300 s, and the game re-checks its growth every 5 s.
Installation
- r2modman Mod Manager: enable JuvenileGrowthTweaks.
- Manual: copy JuvenileGrowthTweaks.dll to BepInEx/plugins.
- Requires BepInEx (the Valheim pack already includes Harmony).
Multiplayer
The swap is still performed by the owner of the creature exactly as in vanilla, so nothing is desynchronized. Install the mod for every player who wants faster growth and keep the same settings on the host and on the clients — otherwise each side uses its own timing.
The mod is client-side; a dedicated server only needs it if you want growth to be accelerated for everyone by default.
Compatibility
- The grow time is changed in the Growup.m_growTime field of the creature, so mods that read this field (MyLittleUI growth hover, BetterRiding dragon growth UI, ValheimPlus offspring info) show the real remaining time instead of one 10× too long.
- Growup.GrowUpdate is not patched at all, so there is no fight with mods that do patch it (BetterRiding: GrowupBondPatch, MountedGrowupDelayPatch).
- ValheimPlus and TameCraft set the grow time in a Growup.Start prefix; our multiplier is applied after them, so it composes with their values. For animals managed by TameCraft's offspring subsystem it is often easier to use TameCraft's own GrowTimeSeconds.
- Creatures with their own growth components (for example OdinMounts / Cats egg hatching) are not affected — the mod touches vanilla Growup only.
- The value is applied when a juvenile spawns or is loaded with its zone, so juveniles that are already in the world pick up the new value after the zone or the world is reloaded.
Notes
- Very small CheckIntervalSeconds values (0.5 s) are safe but pointless: every creature on the map adds one timer call per interval.
- A value outside the allowed range in the cfg file is clamped to the nearest valid value instead of being applied as is.
Русский
Что делает
- Множитель скорости роста — время роста делится на это число. 10 превращает 3000 с (50 минут) роста детёныша в 300 с (5 минут). 1 = ваниль, 0.5 = в два раза медленнее.
- Интервал проверок роста — ваниль проверяет готовность каждые 10 с (первый раз — через 10–15 с после спавна). Здесь по умолчанию 5 с: момент взросления точнее, а лишних проверок нет.
Всё остальное остаётся ванильным: подмена на взрослый префаб, владение (IsOwner), ZNetView.Destroy, наследование приручения и уровня — не тро
Install & use Install: BepInEx plugin
- The archive from playbuff is the mod itself — usually a BepInEx plugin (a .dll or a plugin folder once unzipped).
- Recommended: use a community mod manager (such as r2modman) — pick this game, import the mod, and the manager sets up BepInEx and its dependencies for you.
- Manual route: install the BepInEx loader in the game folder, then drop the unzipped .dll or plugin folder into BepInEx/plugins/.
- Launch the game — the BepInEx console logs every plugin it loads; seeing this mod in the log means it is installed.
Mods with listed dependencies need those installed too, or they will not load. Options are usually changed in-game or in the plugin's config file. In multiplayer, the host and every client need the same mods installed.
Install these first, or the mod will not work: