steam downgrade to specific version

[wild_dog]

Is it possible under steam to downgrade to a specifc version?

A server i play on with a friend is still on 1.1.12, but the steam beta only has outdated experimental 1.1.14 and stable 1.1.19 available.

[Loewchen]

1.1.12 is not available on steam, but you can download it from factorio.com. Or get your friend to update his game.

[Impatient]

Make a backup copy of your blueprint library before doing so.