Checkpoint64: your saves, with an undo button.You know the feeling. A mod crashes your world. The autosave lands right after the boss kills you. Your friend has the only copy of the save, and he's on holiday.Checkpoint64 quietly backs up your game saves while you play, and keeps every version; not just the latest one. So a corrupted world or a terrible run is never the end. Scroll back through your save's history and bring back any earlier point. It's a time machine for your saves.Free to startThe app is free and comes with real cloud space, enough for Stardew Valley, Hollow Knight, Terraria and most retro and emulator saves. Need more room or want to share with a crew? Unlock Full or Pro right on Steam. Both are one-time purchases. No subscriptions, ever.Keep every versionMost cloud saves keep one copy and write over it. Checkpoint64 keeps a running history instead, and you can pin any version so it's never cleaned up, no matter how many new backups come after. Open Versions on any save to see the timeline, then roll back to the one you want. Corrupted world at 2am? Grab the version from 30 minutes ago.No more "who has the save?"Sharing a world with friends? Checkpoint64 makes sure only one person has it open at a time, and shows a feed of who did what. When it's your turn, hit Take over and the save is yours. No more passing files around in Discord.Works with way more than Steam gamesSteam Cloud only covers Steam games the developer set up for it. Checkpoint64 doesn't care where you got the game or how you launch it: Steam, GOG, Epic, an emulator, or a modded launcher all work.Your saves follow youBack up on your desktop, restore on your laptop or Steam Deck, controller in hand. Your worlds come with you between machines, even for games that never had cloud saves at all.A few games it already knowsMinecraft (plus modded launchers like CurseForge, Prism, Modrinth and Feed The Beast), Stardew Valley, Valheim, Terraria, Baldur's Gate 3, Elden Ring, Cyberpunk 2077, Skyrim, RimWorld, Factorio, Palworld, The Sims 4, Civilization VI, Hades, Subnautica... and 100+ more, with new ones added all the time.You don't support my game?Checkpoint64 supports custom paths. If we don't have official support for your game yet, point it at the save folder yourself and get the same cloud, versioned backups as every other game.QuestionsI already have Steam Cloud. Why do I need this?Steam Cloud keeps one copy, and only for games that turned it on. Checkpoint64 keeps a full history, works with almost any game, and lets you rewind to any point.I play with friends.That's why we made the app. You'll never have to wait for a friend to start the server, or log off early because someone else needs the save.Ditch the dedicated server?Yes. With Checkpoint64 the save is always there for you, even when your friends aren't. Stop paying for a dedicated server that's only used a few hours a day.Is it a subscription?No. The app is free. Full and Pro are one-time unlocks on Steam. Buy once, keep it forever.My game isn't listed.Let us know in Discord or in Checkpoint64 and we'll add it. It's a good excuse to buy and test more games.What if my friend uploads something they shouldn't?Every file uploaded to a shared save gets scanned before anyone else on the team can download it, so a bad file never reaches the rest of your group.I want to host saves for my fans.We support creator teams: bring your community into a shared save with read-only access, so they can follow your world without being able to change it.Will it change my game?No. It only reads your save files to copy them. It never touches how your game runs.What is Checkpoint Connect? Checkpoint Connect allows you to host a server locally and share it with your friends without portforwarding.