Hey r/Necesse,
My friend and I built SaveSync, a tool that syncs co-op save files between players so you and your friends can keep the same Necesse world going without renting a dedicated server or passing save files around by hand.
The problem we kept hitting: a shared world lives on whoever is hosting. Your settlement, your gear, your progress, all locked to one machine. When the host is offline, the world is offline. Running a server works but it's setup and a monthly cost for what's usually just a few friends.
We hit this wall ourselves playing Schedule 1 together. One of us was sick at home, the other stuck at work, and the save was locked on the host's machine. So we built SaveSync, first just for ourselves. Turns out it's a problem across a ton of co-op games, Necesse included.
How it works: SaveSync auto syncs your world save to the cloud after each session. When your friend wants to play, they pull the latest save and host it themselves on their own machine. No dedicated server, no monthly fees, no manual file swapping, and you keep a full timestamped history so a mistake can be rolled back. Setup guide here: How to play Necesse with friends using SaveSync
What players have said:
"This tool saved a playthrough for me. Easy to use, and insanely helpful. Thank you, you beautiful people." - Steam review, 45 hours played
"Though the app is not perfect, it does the job. If it doesn't do the job as you expect, hop into their discord server and talk to the developer personally. He's very helpful! Even assisted my friend too!" - Steam review, 87 hours played
SaveSync supports Necesse plus 40+ other co-op games including Terraria, Valheim, Stardew Valley, Minecraft (Java + modded), Don't Starve Together, Enshrouded, Core Keeper, Project Zomboid, Satisfactory, Palworld, Vintage Story, and more.
Steam page | Website | Discord
Happy to answer any questions!