Guides
Fields of Mistria Inventory Upgrade and Bag Guide
Direct answer
The player starts with 10 inventory slots. Buy the Basic Pouch from the General Store for 1,000 Tesserae to reach 20 total slots, then buy the Bag Upgrade for 2,000 Tesserae after the General Store is upgraded to reach 30 total slots. Each tier adds 10 slots, and the toolbar gains additional 10-slot tabs as the inventory expands. [S1][S2][V1][V2]
At a glance
Quick Facts
| Starting capacity | 10 slots |
|---|---|
| First upgrade | Basic Pouch at the General Store; 1,000 Tesserae; 20 total slots |
| Second upgrade | Bag Upgrade after the General Store upgrade; 2,000 Tesserae; 30 total slots |
| Capacity change | Each verified tier adds 10 slots and another 10-slot toolbar tab |
| Controls | Captured defaults disagree; use the current Controls menu |
Do this first
Fastest path
- Start with 10 slots and save 1,000 Tesserae.
- Buy and use Basic Pouch at the General Store, then confirm 20 total slots.
- Upgrade the General Store, save 2,000 Tesserae, and buy and use Bag Upgrade for 30 total slots.
- Check the current Controls menu for toolbar-tab switching because the captured keyboard defaults conflict.
Detailed guide
Verified capacity progression
The current structured inventory table starts the player at 10 carried-item slots. Basic Pouch raises the total to 20, and Bag Upgrade raises it to 30. The two purchases add 10 slots each rather than resetting or leaving capacity at 10. [S1][V2]
Inventory stores carried items while equipped armor and cosmetics are excluded from that capacity in the captured item definition. The page does not identify a third verified bag tier beyond 30 total slots. Any higher total is Pending verification (待确认) under this material. [S1]
| Stage | Item | Cost | Total slots |
|---|---|---|---|
| Start | None | None | 10 |
| First upgrade | Basic Pouch | 1,000 Tesserae | 20 |
| Second upgrade | Bag Upgrade | 2,000 Tesserae | 30 |
Buy the Basic Pouch
The first verified item is named Basic Pouch and is sold at the General Store. It costs 1,000 Tesserae and raises total inventory capacity from 10 to 20. The current table resolves older sources that use Bag Upgrade as a general label for the first purchase. [S1][V2]
Save enough Tesserae, purchase the item, and use it rather than expecting the slots to appear merely from shop progression. The older guide says to place the purchased bag item on the hotbar and press E on keyboard. Controls can be rebound, so use the current action prompt if E differs. [S2]
Unlock the second upgrade
The second verified item is named Bag Upgrade and costs 2,000 Tesserae. It becomes available after the General Store is upgraded and raises the total from 20 to 30 slots. The older guide also associates this later tier with clearing the Water Seal and upgrading the store. [S1][S2][V2]
Store progression is the dependable purchasing gate in the current structured sources. The material pack does not provide the complete General Store upgrade quest, required materials, or exact day. Follow the current town story until the upgraded shop offers the item. [S1][S2][V2]
Toolbar tab expansion
The toolbar begins with 10 visible slots and gains another 10-slot tab as inventory expands. That links carried capacity with additional hotbar pages rather than displaying all 20 or 30 items in one uninterrupted row. Organize frequently used tools and items so tab changes remain manageable. [S1]
The sources disagree about default keyboard switching because the current page gives bracket keys while the older guide says Tab. This may reflect versions, control contexts, or rebinding. Both bindings should be treated as captured defaults, with the live Controls menu taking priority. [S1][S2]
Resolve the old naming conflict
One older source calls the 1,000-Tesserae purchase Bag Upgrade and says it adds 10 slots. Another guide contains ambiguous wording that the capacity becomes 10, even though the verified starting capacity is already 10. The current inventory and General Store tables resolve that conflict with distinct item names and totals. [S1][S2][V1][V2]
Use Basic Pouch for the first tier and Bag Upgrade for the second tier when writing current copy. Describe each purchase as adding 10 slots and state the resulting totals of 20 and 30. Do not preserve the ambiguous older wording as if it were a second capacity system. [S1][V2]
What counts toward inventory
The inventory holds items carried by the player, while equipped armor and cosmetics are treated separately in the captured description. The added slots therefore improve room for tools, forage, fish, materials, food, gifts, and other carried objects. The source does not provide category-specific reserved slots. [S1]
More capacity can reduce trips to storage, but the pack does not quantify time saved or recommend a perfect layout. Use the toolbar tabs for active items and storage for reserves based on the current route. No automatic sorting or stack-size claim is added because those mechanics are not part of the material. [S1]
Earning the purchase cost
The older bag guide suggests crops, minerals, quests, and Town Rank as general ways to obtain Tesserae. It mentions turnips, strawberries, and rubies as examples of saleable items, but none is a mandatory upgrade ingredient. The only verified purchase requirements here are the costs and shop progression. [S2]
Do not sell a quest, museum, or crafting item solely because it appears in a generic money suggestion. The page does not rank profit methods or give a fastest-time claim. Choose a current income route that does not block more valuable progression. [S1][S2]
Upgrade checklist
Begin with 10 slots, save 1,000 Tesserae, buy and use Basic Pouch at the General Store, and confirm 20 total slots. Progress the town until the General Store upgrade, save 2,000 Tesserae, then buy and use Bag Upgrade to reach 30. Check the Controls menu for the current toolbar-tab binding. [S1][S2][V2]
This route uses the current structured tier names and totals instead of blending older ambiguous language. It does not promise an unverified third tier or universal keyboard key. The result is a source-backed 10-to-20-to-30 capacity guide with no invented cost. [S1][S2][V1][V2]
Conditions and exceptions
Version, conditions & exceptions
The structured inventory and shop rows resolve older naming and capacity conflicts; future tiers and exact control bindings remain unconfirmed.
Last verified 2026-08-16. The collected evidence is ready for this page's stated scope.
Evidence trail
Sources & last verified
This page is limited to the collected sources below. Source conflicts, missing image data, and version-sensitive details remain labeled instead of being filled with guesses.
- [S1] Inventory — Fields of Mistria Wiki
- [S2] How to Upgrade Your Backpack — Destructoid
- [V1] Bag Upgrade — Fields of Mistria Fandom
- [V2] General Store — Fields of Mistria Wiki
Last verified: 2026-08-16
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Evidence pack processed August 15, 2026 · Page updated 2026-08-16