A Taxonomy of FRP Goods & Services
Things
A Taxonomy of FRP Goods & Services

Illustrative non-slop AI photo of Goods & Services
Things
Thing Type 1 — Unitary
A single item that can be used over and over again.
Examples:
- Bedroll
- A 10 foot pole
Note that all “single items” can be sold as multiples, e.g. you can buy 5 bedrolls. But it is not sold as a bundle of bedrolls (except if there’s a Fantasy Costco in your world)
Thing Type 2 — Consumable
A single item that can be used once and then it is gone forever.
- Candle
- A mug of beer
Thing Type 3 — Rechargable
A single item that can be used once and it is gone. However, it can be be e.g. picked up and added back
- Arrow
- Crossbow Bolt
- Wand (assuming takes new charges!)
Thing Type 4 — Depletable
A single item that can be used once and transforms into another type of item.
- Flask of Oil (transforms into a Flask)
Thing Type 5 — Asset
A single item that you can buy but you don’t carry it, and thus doesn’t add to your weight limits
- Barrel
- Rowboat
Thing Type 6 — Extensible
An item that can be extended
- A 10 foot chain — you can e.g. also buy a 100 foot chain for 10x the price
- A 1 sq. yd of Canvas — you can buy 25 yards of Canvas
Note that Firewood is not Type 5 — it is type 2, bought perhaps as bundle or as a multiple
Transactions
Transaction Type 1 — Service
A single service provided by another person:
- Creating a scroll
- Casting a Cure spell
- Giving a ferry ride across the river
Transaction Type 2 — Charter
A “continuous” service provided by another person
- A taxi ride (per mile)
- A boat trip (per day)
- A hotel stay (per night)
Transaction Type 3 — Membership
Something you join and pay dues for on a regular basis
- Guild membership
- Citizenship (e.g. taxes)
- Church membership
Transaction Type 4 — Intangible
Something you buy on a one time basis, but doesn’t actually exist as a physical object
- Fishing License
- Entry Fee to a Village
- Docking Rights
Variants
Variant 1 — Bundled
A group of items sold together as a bundle:
- 3 Candles (Thing Type 4)
- 10 Arrows (Thing Type 3)
Variant 2 — Fuelled
An item that requires another item to work
- Crossbow (requires a Bolt)
- Lantern (requires a Flask of Oil to make light)
Tables with Examples
Things

Transactions

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