Okay, so we tried out the swap command. I have my items back now, but the achievements are still unachievable for me. Are we allowed to launch rockets, but don't handcraft so Ill get it later?

No, he always overwrites without backup programm. Last savefile is the auto-save.

Hello everyone! A friend of mine and myself are trying to get all the achievements for factorio. We have currently 32/38 achievements unlocked and started our 2nd playthrough for 3 achievements we couldn't get in the last savefile. (Lazy Bastard, 20.000.000 green circuits and 100 follower bots.) We ...