How do I handle cloud save conflicts?

Detect conflicts (when the local and cloud saves diverge) and resolve them safely rather than blindly overwriting: keep the save with more progress, prompt the player to choose when it's genuinely ambiguous, or merge where possible. Keep a backup of saves so you can recover if resolution goes wrong. Capturing sync errors and conflict-related issues helps you find and fix the resolution logic before it costs players progress, since a conflict that loses progress undermines the whole point of cloud saves.

What Causes Cloud Save Conflicts?

Q: Why do cloud saves sometimes lose progress?

Because of naive conflict resolution. When two saves diverge (from multi-device or offline play), the system must choose which is authoritative, and if it resolves badly, blindly taking the cloud version, or the 'most recent' by an unreliable clock, it can overwrite the save with more progress, losing it. This is especially painful since cloud saves are meant to protect progress. Careful conflict detection and resolution (keeping more progress, prompting when ambiguous, keeping backups) prevents this.

Quick answer: Cloud save conflicts happen when two versions of a save diverge and the system can't tell which is correct: playing on multiple devices, playing offline then syncing, interrupted syncs, and timing issues. Without careful handling, the wrong save can win.

Cloud save conflicts, where two saves disagree and one might overwrite the other, can cause progress loss, the very thing cloud saves are meant to prevent. The causes are in how saves diverge and sync. Here's what causes cloud save conflicts.

How Saves Diverge

A cloud save conflict happens when there are two different versions of a save and the system must decide which is authoritative, with the risk of choosing wrong. The causes of divergence:

Playing on multiple devices, progress on one device while the cloud has progress from another
Offline play then syncing, playing offline (so the cloud isn't updated), then syncing and conflicting with the cloud version
Interrupted syncs, a sync that didn't complete, leaving versions out of step
Timing issues, saves and syncs happening in an order that creates ambiguity about which is newer
Multiple sessions, two sessions running and both saving
Clock or ordering problems, difficulty determining which save is actually the latest

In each case, two saves exist that disagree, and the conflict is which one to keep, with progress loss the risk if the wrong one wins.

Why It Can Cause Progress Loss

If conflict resolution is naive, just take the cloud version, or the most recent by an unreliable clock, it can overwrite the save with more progress, losing it. This is especially painful because cloud saves are supposed to protect progress, so a conflict that loses it is worse than no cloud saves.

Bugnet captures save-sync errors and the crashes/errors around save operations, so conflict-related problems surface. Catching where sync conflicts and errors happen helps you find and fix the resolution logic before it costs players progress.

Handling Cloud Save Conflicts

Handling conflicts well means careful resolution: detect conflicts (when local and cloud diverge), and resolve them safely, keep the save with more progress, prompt the player when ambiguous, or merge where possible, rather than blindly overwriting. Keeping backups lets you recover if resolution goes wrong.

Bugnet captures the sync errors and conflict-related issues, helping you fix the handling. So cloud save conflicts come from saves diverging across devices, offline play, and interrupted syncs, and handling them means careful conflict detection and resolution that doesn't lose the player's progress.

Cloud save conflicts come from saves diverging, multi-device play, offline-then-sync, interrupted syncs, timing. Naive resolution can overwrite progress, so detect conflicts and resolve safely (keep more progress, prompt, keep backups).