Overview

Hands-on walkthroughs for the most common changes. Each tutorial references Blueprints under Content/CityBuilderTemplate/ and includes worked examples you can apply in DemoMap.

Before you start

Open the FAB project, load DemoMap, and press Play once so you know the default loop: place roads → preview buildings → construct → collect income → level up → save.

Tutorial index

Tutorial	What you will do
Try the demo	First session — roads, houses, shops, simulation HUD
Tune economy and progression	Costs, income, XP, unlock levels, sim speed
Add a new building type	Duplicate BP_CBT_House or BP_CBT_Shop with new mesh and stats
Customize roads and grid	Grid size, road meshes, lamps, traffic
Migrate into your project	Move template content into an existing UE project

Recommended order

flowchart LR
  A[Getting Started] --> B[Try the demo]
  B --> C[Tune economy]
  C --> D[Add building or Roads]
  D --> E[Migrate]
  B --> F[Blueprint Reference]

1. Getting started — open the project and learn the layout.
2. Try the demo — play through one complete city session.
3. Tune economy — adjust balance before adding content.
4. Add a building or Customize roads — art and systems (either order).
5. Migrate — only if you are moving assets into another project.
6. Blueprint reference — property and function lookup.

Example presets (quick reference)

Apply these on child building Blueprints and BP_CBT_TimeOfDay for fast balance experiments.

Preset	Target	Suggested changes	Best for
Relaxed start	BP_CBT_House, BP_CBT_Shop	Lower BuildingCost_Currency ~25%; raise Revenue Per Worker on shop ~20%	Learning placement without grinding
Fast city	BP_CBT_GameState, BP_CBT_TimeOfDay	Default DoubleSpeed via ESimulationState; raise Sun Speed on BP_CBT_TimeOfDay; shorter ConstructionTime on houses	Quick iteration and trailers
Road-first challenge	BP_CBT_BaseBuilding	Increase all BuildingCost_Currency ~15%; keep bIsNearRoad strict	Emphasize infrastructure planning
High-rise unlock	BP_CBT_Apartment, BP_CBT_OfficeBuilding	Set UnlockLevel to 2 and 3 respectively	Visible progression gating

Open each Blueprint’s Class Defaults to read current shipped values before applying deltas.

Key paths

Item	Location
Content root	Content/CityBuilderTemplate/
Playable map	Maps/DemoMap
Menu map	Maps/MainMenu
Player controller	Blueprints/BP_CBT_PlayerController
Economy singleton	Blueprints/BP_CBT_Singleton
Building parent	Blueprints/Buildings/BP_CBT_BaseBuilding
HUD	Blueprints/Widgets/WBP_PlayerHUD
Save slot	CityBuilderSaveGame (via GetSaveGameSlotNameAndIndex)