The shop-running loop behind shopkeeper games as a drop-in framework: stock goods, price to demand, read the reaction, haggle, build fame. Deterministic and art-free, with a Shop Economy Simulator.The shop-running loop behind shopkeeper games as a drop-in framework. You bring the theme and the art; this is the economy underneath.What it does- Customers with budgets, taste and patience browse your stock- Price each item and get an instant reaction, from steal to too much- Haggle with counter-offers, walk-aways and a charisma bonus- Demand shifts with scarcity, recent sales and your fame- Fame tiers bring richer customers and rarer goods- Restock from a supply seam, so your dungeon, crafting or loot plugs in- Day loop with rent, save and load, fully deterministicWhat's included- Drop-in uGUI shop view and a cannot-break IMGUI demo scene- Shop Economy Simulator editor tool and a content validator- Sample shop (items and customers) built in code, full C# sourceRequirements- Unity 2021.3 or newer. No third-party SDK. TextMeshPro is not required.Support- info@favengames.comDocumentation is included in the package (README and Documentation).Built-in render pipeline and compatible with URP and HDRP, since the package is UI and logic only. Works in 2D and 3D projects. Authored in Unity 2022.3 LTS, supports 2021.3 and up. Full C# source, no DLLs and no third-party SDK, compiles clean with no warnings. Split into Runtime, UI, Editor and Demo assemblies under the FavenGames.Merchant namespace. The economy is deterministic and seeded, so the included Shop Economy Simulator forecasts the live shop exactly. Documentation is included in the package files.No generative AI art, audio, or 3D models are included in this package. All marketing images are rendered programmatically with Python (Pillow), not an AI image generator. The store description is written in plain language and reviewed by the developer.
