How-To: Build a Save/Load Menu

Goal: build a menu that lists existing save slots with their metadata, and can start a new game, load a slot, or delete one.

Prerequisites

You can trigger a save (see Quick Start: Saveable Systems). This page uses the raw UCrimsonSaveGameManagerSubsystem; the UCrimsonSaveFacade Blueprint library offers the same actions in one call each.

1. List the slots

GetAllSaveSlotHeaders scans the save directory and returns one UCrimsonSaveGameHeader per manual slot (auto/quick-save slots are excluded). Read each header's metadata to build a row.

Save menu widget: **Get Crimson Save Game Manager** -> **Get All Save Slot Headers** -> For Each -> make a row from **Display Name**, **Save Date Time**, **Play Time**, and **Slot Type**.

Verify

Create two named saves, open the menu - both rows appear with the correct names, timestamps, and play time.

2. New game, load, delete

Bind the menu buttons to the slot actions. UCrimsonSaveFacade wraps each in a single call; the raw subsystem exposes the same operations.

Bind buttons to **Start New Game**, **Load Game**, and **Delete Slot** on the Crimson Save Facade (or **Request New Game Save** / **Request Load From Slot** / **Request Delete Slot** on the manager).

Delete is irreversible

RequestDeleteSlot removes every file in the slot directory. Confirm with the player before calling it.

3. Refresh the list when it changes

Saves and loads are event-driven. Bind OnSaveSlotListChanged to rebuild the list after a slot is created or deleted, and OnLoadComplete to know when a load has actually finished before switching screens.

cpp

SaveMgr->OnSaveSlotListChanged.AddDynamic(this, &UMySaveMenu::Rebuild);
SaveMgr->OnLoadComplete.AddDynamic(this, &UMySaveMenu::HandleLoadComplete);

Header metadata fields

Each row comes from a UCrimsonSaveGameHeader:

Field	Type	Use
`DisplayName`	`FText`	User-facing slot name (e.g. the character name entered at new game).
`SlotType`	`ECrimsonSaveSlotType`	`Manual` / `AutoSave` / `QuickSave` - filter which slots the menu shows.
`SaveDateTime`	`FDateTime`	When the save was written.
`PlayTime`	`FTimespan`	Total playtime accumulated in the slot.
`ThumbnailData`	`TArray<uint8>`	Optional screenshot captured at save time.

How-To: Build a Save/Load Menu

1. List the slots

2. New game, load, delete

3. Refresh the list when it changes

See also