Slot Lock — a place for everything, in your inventory and in every chest

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Eggs filling the whole chest because the wolf meat ran out? Wood swallowing your last free slots on every trip? Give a slot a mode: it keeps its item, or it is reserved for one item only.

New in 2.0.0: two slot modes, in your inventory and in every chest (the same for every player), a menu of known items for empty slots, an animated help with a simulator, and a new look.

The two modes

• Mode 1, kept (cyan frame, lock "1"): the item stays in its slot. Sorting, Place stacks, quick stack and store all leave it alone, and the slot stays reserved for its item even when empty. Once it is full, extra items go to free slots as usual.
• Mode 2, reserved (gold frame, lock "2"): the slot takes only its item. Once your mode 2 slots for an item are full, automatic transfers stop there: no more auto pickup of that item, no more middle click or vacuum of it into that chest. Exceptions: a mode 1 slot for the same item, or a stack of it you already put in a free slot.
• Free: no rule, as in the game.

How to use it

• Open your inventory (or a chest), hover a slot and press K (configurable): free, mode 1, mode 2, then free again.
• On an empty free slot, K opens the menu of known items: search, then left click for mode 1, right click for mode 2.
• An empty reserved slot shows the item it waits for as a ghost, under the chains and the lock of the mod's icon.

Animated help

The glowing ? Help button, right of your inventory's top corner, opens a help window in your game's language:

• The modes: three animated cards (free, mode 1, mode 2) and the filling order.
• Simulator: a small bag, two chests and loot on the ground, run by the mod's real rules. Change a slot with K, press Place stacks, Take all or auto pickup, click the loot: items fly where the game would put them, a log says why. Nothing touches your real items.
• Situations: six cases replayed step by step (copper and its kept slot, flint with a quota, wood at pickup, resin that stays put, a chest shared by everyone, chests pulling loot).
• Keys, and a tooltip on every slot and button.

Everything that only exists with OttoStash is marked in purple. The button glows until you open the help once; HelpButton = false hides it.

Where items go

When an item comes in (auto pickup, Place stacks, OttoStash's middle click or vacuum, InventorySlots' quick stack), it fills:

1. its mode 2 slots,
2. then its mode 1 slots,
3. then free slots, when allowed: in a chest, only if the chest has a mode 1 slot for it or already holds it in a free slot; in your inventory, unless it has mode 2 slots and nowhere else to go.

A chest with a slot reserved for an item accepts that item even when it holds none of it. A slot reserved for another item is never taken, not even by hand: dropping another item there is refused. Your own moves (drag, shift click, take all, crafting) can always use free slots.

Chests are shared

A chest's slot modes are saved in the world, so every player sees and follows the same rules. Install the mod on every player and on the server.

Works with

• OttoStash (optional: SlotLock works on its own with the game's Place stacks, Take all and auto pickup): OttoStash adds storing into every nearby chest at once (store key, middle click) and chests pulling in loot. A slot of your inventory in mode 1 or 2 is also an OttoStash favorite slot, so its store leaves it alone; its middle click and vacuum follow the chest's modes.
• InventorySlots: its sort (your inventory and chests) leaves set slots in place and puts each reserved item back in its slot; its quick stack fills chests in the same order.

Coming from 1.x

Your locked slots become mode 1 slots, with the same reserved items. To give a slot another item, use K or the menu: dropping another item into a reserved slot is now refused.

Configuration

BepInEx/config/com.Azura.slotlock.cfg:

Installation

• With a mod manager (r2modman, Thunderstore Mod Manager): click Install. BepInExPack Valheim is installed with it.
• By hand: install BepInExPack Valheim, then put SlotLock.dll in Valheim/BepInEx/plugins/.

Tested with Valheim 1.0.20 and BepInExPack Valheim 5.4.2350.

En français

Des œufs plein le coffre parce que la viande de loup est épuisée ? Le bois qui avale vos dernières cases à chaque sortie ? Donnez un mode à une case : elle garde son objet, ou elle est réservée à un seul objet.

Nouveau dans la 2.0.0 : deux modes de case, dans l'inventaire et dans chaque coffre (les mêmes pour tous les joueurs), un menu des objets connus pour les cases vides, une aide animée avec un simulateur, et une nouvelle apparence.

• Mode 1, gardée (cadre cyan, cadenas « 1 ») : l'objet reste dans sa case ; le tri, « Placer les piles », le rangement rapide et « tout ranger » le laissent tranquille, et la case lui reste réservée même vide. Une fois pleine, le surplus va dans les cases libres.
• Mode 2, réservée (cadre doré, cadenas « 2 ») : la case ne prend que son objet. Quand les cases du mode 2 d'un objet sont pleines, les transferts automatiques s'arrêtent là : plus de ramassage automatique de cet objet, plus de clic molette ni d'aspiration vers ce coffre. Sauf s'il existe une case mode 1 pour le même objet, ou une pile déjà posée en case libre.
• Touche K (réglable), en survolant une case de l'inventaire ou du coffre ouvert : libre, mode 1, mode 2, puis libre. Sur une case vide et libre, K ouvre le menu des objets connus : recherche, clic gauche pour le mode 1, clic droit pour le mode 2. Une case réservée vide montre son objet en fantôme, sous les chaînes et le cadenas.
• Ordre de remplissage : les cases mode 2 de l'objet, puis ses cases mode 1, puis les cases libres quand c'est permis. Un coffre qui réserve une case à un objet l'accepte même s'il n'en contient pas. Une case réservée à un autre objet n'est jamais prise, même à la main ; vos propres gestes (glisser, clic Maj, tout prendre, artisanat) peuvent toujours aller en case libre.
• Aide animée : le bouton lumineux « ? Aide », à droite du coin haut de l'inventaire, ouvre une fenêtre dans la langue du jeu : les modes en cartes animées, un simulateur (un petit sac, deux coffres et du butin au sol, avec les vraies règles du mod ; rien ne touche à vos vrais objets), six situations rejouées pas à pas, les touches, et une bulle sur chaque case. Ce qui n'existe qu'avec OttoStash est marqué en violet. Réglage HelpButton.
• Coffres partagés : les modes d'un coffre sont enregistrés dans le monde, les mêmes pour tous. Installez le mod chez chaque joueur et sur le serveur.
• Avec OttoStash (facultatif) et InventorySlots : SlotLock marche seul avec « Objets similaires », « Prendre tout » et le ramassage du jeu ; OttoStash ajoute le rangement vers tous les coffres proches et l'aspiration. Clic molette, aspiration, tri et rangement rapide suivent les modes.
• Depuis la 1.x : vos cases verrouillées deviennent des cases en mode 1. Pour changer l'objet d'une case, utilisez K ou le menu.

Changelog

2.5.0

• New category: Idols (lime green frame): the Battle and Protection idols found in chests and ruins. A slot, or a whole chest, can now wait for them. Like the other families, it is read from the game itself (what recipes ask for as a refining resource), so idols added by other mods join it too.
• Each item still belongs to one family only; the idols come right after the trophies.
• Help: the Categories tab now shows the thirteen families in two columns.
• Tested and certified compatible with Valheim 1.0.21 (28 October 2026 update): nothing needed changing. Rebuilt against the new version of the game.

2.4.0

• Three new categories: Rocks & minerals (slate grey frame: stone, flint and the other rocks you mine or pick up), Hides & leather (tan frame: deer hide, leather scraps and the other hides and pelts that beasts leave behind) and Trophies (turquoise frame). A slot, or a whole chest, can now wait for any of them. They are read from the game too (the rocks its stone pieces are built of, what creatures drop, the trophy item type), so the rocks, hides and trophies of other mods join them.
• Each item still belongs to one family only: wood first, then ores, metal bars, rocks, hides, trophies, raw meat, dishes, mead bases, meals and vegetables.
• Help: the Categories tab now shows the twelve families as tiles in two columns, with the rule of the chosen family next to its name.

2.3.0

• Two new categories for wood, read from what chopped trunks give: Common wood (fir green frame: wood and core wood, which fill a chest in no time) and Rare wood (royal blue frame: every other kind). A slot, or a whole chest, can now wait for either. Seeds, cones and resin are not part of them. The wood of other mods' trees joins the rare kinds, and only the kinds you have already found are shown.
• Help: the Categories tab now lists nine families, in tighter rows (same text size).

2.2.0

• Help: a new Categories tab, in 35 languages. The seven families with their colours and what goes in each; what a family holds, limited to the items you have already discovered (the list grows as you progress, nothing from later in the game is revealed); how to give a slot or a whole chest to a family, which slots fill first, and what the K menu shows. A long family scrolls inside its own box (mouse wheel or scroll bar): nothing else on the page moves.
• No more spoilers: hovering a category in the K menu now names only items you have already discovered, without the total count; an empty category slot only cycles through the items of its family you know (just its frame and chains if you know none yet).

2.1.1

• Important fix, please update (items could be lost). When the game loaded a chest, or your bag, items lying in a slot whose rule asks for something else were left out, so they looked gone. The next change to that chest (a sort, an item taken or stored) then saved it without them, and they were lost for good. It happened above all with a chest reserved as a whole for one item or category while it still held other things. Nothing is left out any more: such items stay in their slot, visible, and can be taken out; the rule only keeps new ones out. Items that 2.1.0 hid but that were not saved over yet come back when the chest is opened again.
• Dropping an item by hand onto a slot reserved for another item is still refused, and the item stays where it was.

2.1.0

• Categories: a slot can wait for a whole family of items instead of one, in mode 1 or mode 2: raw meat & fish, dishes to bake, meals, vegetables, fruits & mushrooms, ores, metal bars, mead bases. The families are read from the game itself (cooking stations, oven, smelters, fermenter, harvests, recipes), so other mods' items join them too. Each family has its own frame colour, and an empty category slot shows its items in turn.
• Whole chest: Shift+K on any slot of an open chest (or the « Whole chest » box of the menu) reserves the whole chest for one item or one category. Other items are refused, even by hand; slots with their own rule keep it. The rule is removed from the same menu. New setting WholeChestKey.
• Items fill their own slots first (mode 2, then mode 1), then the slots of their category (mode 2, then mode 1), then free slots when allowed.
• The menu of known items starts with the categories; its search ignores accents and ligatures (« oeuf » finds « Œuf ») and takes several words in any order.
• An item's tooltip says the rule of its slot, in your language.
• Fix: K on a chest slot could open the menu for a hidden slot of InventorySlots' larger inventory, lying under the chest. K now acts on the slot really under the mouse.
• Fix: with InventorySlots' hotbar switch (key under Esc), slot rules now move with the rows; a lock no longer stays behind on an empty slot that refused everything.
• Fix: the « ? Help » button could turn back into « Take all » after a language or keyboard/controller change. It keeps its label, and now sits just above the inventory's top-left corner, where it no longer covers InventorySlots' equipment panel.
• OttoStash: its « Slot is favorited and will not be stored » tooltip line no longer shows on chest items; on a set slot of your bag, SlotLock's own line replaces it.
• Now also available on Nexus Mods.

2.0.0

• Two slot modes, in your inventory and in every chest: mode 1 (kept: the item stays in its slot, extra ones go to free slots) and mode 2 (reserved: only that item, and nothing more by automatic transfers once its mode 2 slots are full).
• Chests: slot modes are saved in the world and shared by every player. Install the mod on the server too.
• Items fill their mode 2 slots, then their mode 1 slots, then free slots when allowed, for auto pickup, Place stacks, OttoStash's middle click and vacuum, and InventorySlots' quick stack. A chest with a slot reserved for an item accepts it even when it holds none.
• Menu of known items: K on an empty free slot, with search; left click for mode 1, right click for mode 2.
• New look: cyan and gold frames, numbered locks, the expected item as a ghost in an empty reserved slot, and a new icon.
• Your 1.x locked slots become mode 1 slots. Dropping another item into a reserved slot is now refused: use K or the menu to change it.
• InventorySlots' chest sort keeps set slots in place too.
• Animated help, from the glowing « ? Help » button of the inventory, in 35 languages: the modes, a simulator (a bag, two chests and loot on the ground, run by the mod's real rules without touching your items), six step-by-step situations and the keys. What only exists with OttoStash is marked.
• New settings ContainerSlots, HelpButton, Mode1Color, Mode2Color and GhostOpacity (FrameColor is replaced); every setting is described in English and in French.

1.1.1

• Tested with Valheim 1.0.20 (15 October 2026 update): nothing needed changing. Rebuilt against the new version of the game.

1.1.0

• Messages in 35 languages: your game's own language, English otherwise (they were English or French).
• Tested with Valheim 1.0.17.

1.0.1

• InventorySlots: its sort button (S) no longer moves locked items nor puts other items in locked slots; it puts each reserved item back into its locked slot. Its quick stack, store all and take all skip locked slots too.
• A locked slot only changes its reserved item when you drop another item into it by hand (a sort or another mod moving items no longer changes it).

1.0.0

• First release: locked inventory slots (K on the hovered slot), skipped by Place stacks, transfers and OttoStash's store, reserved for their item when empty.