Quick answer: Yes, you need save backups, they let players recover from corruption to a recent good state instead of losing everything, an essential safety net.

Save backups turn a corruption from total loss into a minor setback. Here is whether you need save backups.

Why You Need Them: Recovery From Corruption

You need save backups because they let players recover from save corruption to a recent good state instead of losing everything. Even with atomic writes, a save can occasionally corrupt, and without backups, that means total progress loss, one of the most rage-inducing player experiences.

Bugnet captures the save-corruption failures players hit, so you can see whether corruption is occurring and confirm that backups (plus atomic writes) prevent the total progress loss it would otherwise cause.

How They Work: Keep Recent Good Versions

Save backups work by keeping recent good versions of the save, so if the current one corrupts, you can fall back to a recent backup (losing only progress since that backup, far better than total loss). Combined with load validation (detecting corruption and falling back), backups make saves recoverable.

Bugnet captures the load crashes from corrupt saves, so you can confirm corruption is happening and that adding backups and validation let players recover instead of crashing or losing everything.

Why They're Worth It: Lost Progress Is Catastrophic

Save backups are worth it because lost progress is catastrophic for retention and reviews, players who lose progress quit furious and warn others, so a cheap safety net that prevents total loss is high-value. The small cost of keeping backups far outweighs the damage of a single corruption event with no recovery.

Bugnet captures the progress-loss failures players hit and ranks them by impact, so you can see how damaging progress loss is and confirm that backups (and atomic writes) stopped it, protecting retention.

Yes, you need save backups, they let players recover from corruption to a recent good state instead of losing everything, an essential, cheap safety net since lost progress is catastrophic.