Checkpoint64 vs OpenSave

Checkpoint64 backs up PC game save folders to the cloud and lets users browse and restore earlier versions. It checks folders every 60 seconds and uploads changed files after a game finishes writing, with each upload recorded as a version. It supports games from Steam, GOG, and Epic, along with emulators and modded setups; presets cover more than 140 games and seven emulators. For shared saves, a lock limits uploads to its holder. Locks expire, and a teammate taking over gets a warning and a logbook entry. Linking Discord can notify teammates when someone manually commits or restores a shared save. The app is listed for Windows 10 and 11, macOS on Apple Silicon, and Linux; Steam lists Steam Deck support. The free plan includes 20 MiB of cloud storage per space and does not expire. Pro costs €5 a month, while Lifetime costs €10, paid once. Save files are encrypted in transit and at rest, but the service is not end-to-end encrypted or zero-knowledge.

OpenSave syncs game saves among a user's devices, including emulator saves and games outside Steam Cloud. It can identify games using an offline, community-maintained index of more than 20,000 titles, or track a folder or file selected by the user. Devices can find each other over the same Wi-Fi or pair over the internet with a room code, without an account or port forwarding. OpenSave keeps versioned snapshots and supports rollback and branches; when it finds conflicting saves, it asks the user how to resolve them. Optional snapshot backups can go to Google Drive, Dropbox, OneDrive, WebDAV, or a NAS folder. On a LAN, devices communicate directly. Internet syncing uses an encrypted connection to a stateless relay, but the encryption ends there and the relay could read forwarded data. Users can self-host the relay and manage its daemon and CLI through a local REST/WebSocket API. It is free and MIT-licensed, with Windows, Linux, Steam Deck, and macOS options. On a stock Steam Deck, the Linux tarball will not start; the site recommends the Flatpak.