Cloud Saves Without Sign-In: When Anonymous Saves Are Enough

Not every game needs sign-in on day one.

For many browser, idle, casual, jam, and prototype games, the better first experience is:

1. open the game
2. start playing
3. save immediately
4. add sign-in only when the game has a real reason

Persistly supports that flow with local-first saves. The SDK can create a game account behind the scenes, store the account session locally, and sync progress without asking the player to register first.

When Anonymous Saves Are Enough

Anonymous saves are a good first version when:

• the game is single-player
• progress starts on one device
• the first session should be instant
• the game is early, pre-alpha, or in public demo
• the save model is one autosave or a few simple slots
• losing the local browser/device would be inconvenient but not catastrophic

This is common for idle games, incremental games, web demos, puzzle games, and early playtests.

The player does not care whether the first save is called a profile, account, slot, or session. They care that the game comes back after refresh.

The Simple Flow

A one-save JavaScript game can start like this:

import { PersistlyGameSaves } from "@persistlyapp/sdk";

await PersistlyGameSaves.configure({
  runtimeKey: "ps_test_replace_me",
});

const loaded = await PersistlyGameSaves.shared.loadData();

await PersistlyGameSaves.shared.saveData({
  level: 4,
  coins: 320,
  checkpoint: "mushroom-meadow",
});

await PersistlyGameSaves.shared.forceSyncData();

The game keeps its own gameplay loop. Persistly handles the local-first save boundary and cloud sync calls.

Why This Helps Onboarding

Sign-in is useful, but it is also friction.

Every extra step before the first playable moment can reduce how many people actually try the game. If the game is still proving its loop, anonymous saves let players reach gameplay sooner.

This is especially useful when:

• you are testing an itch.io-style demo
• you want friends to try a build quickly
• the first session is short
• the game does not yet have purchases, guilds, leaderboards, or account recovery

Start with the smallest save flow that protects progress. Add identity when the game earns that complexity.

When Anonymous Saves Are Not Enough

Add sign-in when players need durable identity across devices.

Good triggers:

• the game has purchases or paid supporter packs
• progress is expected to last months
• players switch between browser, desktop, and mobile
• support needs to recover accounts
• the game has social identity, clans, leaderboards, or shared ownership
• players expect to uninstall/reinstall and recover progress

Anonymous saves are convenient, but they depend on the local account session staying available. If a player clears browser storage or loses the device, public game clients cannot safely recover that anonymous account without a transfer or sign-in flow.

Transfer Codes Are A Bridge

For no-login games, short-lived transfer codes can help a player move progress while the old device is still available.

That flow is useful for:

• browser to browser transfer
• browser to Godot transfer
• a "continue on another device" button
• playtests where full sign-in is not worth building yet

Read Transfer A Persistly Save Between Browser And Godot for that model.

Transfer codes are not usernames, passwords, support lookup keys, or permanent recovery codes. They are a controlled handoff from one active device to another.

What To Tell Players

Use plain language.

Good:

Progress is saved on this device and synced when online.

Better when transfer is available:

Want to continue on another device? Generate a transfer code from this device.

If your game has no sign-in yet, avoid promising permanent account recovery.

Bad:

Your account is always recoverable.

That promise needs real authentication or a recovery system.

How To Prepare For Sign-In Later

Even if you start anonymously, keep your save model ready for future identity.

Recommended:

• use stable slot ids
• keep account-wide state separate from slot state when needed
• store only serializable gameplay data
• keep slotInfo small
• do not put secrets in save data
• avoid using local browser storage as your only long-term plan

The save model from One Save vs Multiple Save Slots still applies. Anonymous and authenticated games both benefit from a clear slot model.

Practical Decision

Start anonymous when:

• you need fast onboarding
• the game is early
• the save is simple
• players mostly play on one device

Add sign-in when:

• losing access is expensive
• cross-device play matters
• purchases or paid progress exist
• support needs reliable identity

Do not add sign-in just because every SaaS product has a login form. Add it when it improves the player's trust in their progress.

Related Resources

• How To Add Cloud Saves To An Idle Game
• One Save vs Multiple Save Slots
• Transfer A Persistly Save Between Browser And Godot
• Designing Offline-First Save Systems