Hearth automatically syncs your Icarus prospect and outpost saves between players through Google Drive. Anyone can host. Nobody gets locked out. No dedicated server needed.
By default, whoever created the prospect owns the save. When they go offline, the world goes with them. Your whole group is on standby until that one person is available.
Your crew wants to run a prospect but the person who owns the save is at work, asleep, or just not around. Without the host's machine, you can't play — even if everyone else is ready to go.
Copying save files through Discord or USB drives works until it doesn't. One wrong transfer, one forgotten backup, and hours of progress disappear. No version control, no lock protection, no safety net.
Running a dedicated Icarus server means leaving a PC on 24/7 or paying a monthly hosting fee — for a game you play a few nights a week. That's a bad trade.
Hearth runs quietly in the background. You play the game. It handles everything else automatically.
One-time setup. Tell Hearth where your shared Google Drive folder lives. Your group shares that same folder — that's the only thing everyone needs in common.
Check the box next to any world in Hearth. It pushes your save files to the shared folder immediately. Your crew can now see and sync that world on their end.
When Hearth detects Icarus launching, it automatically locks your shared worlds and pulls the latest version from Drive before you're in the menu. You're always on the most recent save.
When you close Icarus, Hearth pushes your updated saves back to Drive automatically. No manual steps. The next person to open the game gets your progress.
No subscriptions. No server bills. No technical knowledge required beyond setting up a Google Drive folder.
While anyone in your group is playing, Hearth marks the world as locked. No accidental overwrites. No lost sessions from two people writing at the same time.
Hearth backs up your save locally every 25 minutes while you're playing. Never lose more than 25 minutes of progress from a crash.
Save files go to a Google Drive folder you control. No third-party servers, no accounts with us, no subscriptions. You own it.
Once it's set up, Hearth runs in the background and handles everything. No manual syncing, no remembering to upload. Just play.
Every line of code is public on GitHub. Read exactly what Hearth does before you run it. No black boxes, no surprises.
No premium tier. No trial period. Hearth is free because the person who built it just wanted to play Icarus with his cousin.
C:\Users\[YourName]\AppData\Local\Icarus\Saved\PlayerData. Hearth finds this automatically — you don't need to touch the folder directly.Free download. Open source. Takes about five minutes to set up. No account required on our end — just a Google Drive folder your group shares.
↓ Download Hearth Free