With regards to my own save file (actually, a few dozen of them), I solved in a general way by building a ( Linux-only) tool to automate map upgrading: factorio-save-upgrader. Then again, fixing is part of the game loop. Technically upgrading a map doesn't necessarily mean functionally upgrading - you should verify that everything on the upgraded map works as intended. Boiler size changes is one, oil recipe changes another.
In the Steam version of Factorio you can switch to older/alternate versions of (games such as) Factorio in the game properties.Īs other answers highlight, the factory you built on your map might not work quite the same anymore. To get old versions of the game, log in to and download older versions from the archive. Here's the stepwise load/upgrade concept: Loading
Factorio download saved game upgrade#
If you need to, you can repeat the steps to upgrade the save file across multiple major versions. Load the save file, then re-save to upgrade. You can manually upgrade maps by loading them in older (but still within the compatible save file range) versions of Factorio. That's four major versions older (0.16, 0.17, 0.18, 1.0, 1.1), so quite understandably it's not supported. I recently hit that limit, trying to load an old map (0.16.x from 2017-2018) in the most recent Factorio version (1.1.x from 2020-2022). While Factorio's major versions are generally backwards compatible with at least some older map versions, there's a limit - around two older major versions from what I gather. You may need to research some new technologies if new prerequisites were added. Some buildings which changed sizes between versions (like the fluid pump) may need adjustments, and I'm not sure what will happen with items that have been removed in 0.15 (like alien artifacts and science).Īny research you have completed will still be researched. Most structures and items will be preserved. Some ore patches will probably be created for the new uranium ore. If the game's terrain generation changed significantly between versions, there might be discontinuities between old and new terrain, but I don't think there's any such changes in 0.15. Disabled loading of saves before 0.12.0 version (You can use 0.12 to load older saves and re-save them).
Factorio download saved game Patch#
Factorio 0.15 will be able to load any save that was made in Factorio 0.12 or later - from the patch notes: Factorio has historically allowed saved games to be migrated between versions, and the 0.14 to 0.15 migration is no exception.
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