Running an older Base version?

[valuch]

Is it possible to run a prior version of the base game?. I have a saved game which is reliant on 0.15 which the current version (either .17 and .18) wont load.

[Loewchen]

Sure, you can either choose the version as beta in steam or download it from here with a factorio.com account.

[MakeItGraphic]

try install .16, fixing the save there, then .17 repeat, and finally .18