Factorio Forums

I am playing the space age DLC. i started a new run and when i got steam power, assemblers and red science i did not get the achievements.
im using steam if thats an issue and i have unlocked the achivements before. I also have the editor extensions mod installed but i have not used cheats on my run.

what could be the issue?

If you load a mod, Steam achievements will stop for this save. Steam will only count achievements for unmodded saves. To resume Steam achievements, load a save from before you added a mod or create a new vanilla game. (Space Age doesn't count as mod if it comes to achievements. Using just the 4 Space Age extensions will still get you Steam achievements.)
Modded games will continue to unlock achievements with your local game client, they're just not being reported to Steam.
Using the console finally will completely stop achievements.