» Wed Jan 27, 2010 7:10 am
Any console command, even tm, tfc, and tcl seems to disable achievements for that play session. If you use the console to unstick yourself then complete a quest, no achievement but if you unstick yourself, close out the game, restart and then finish the quest- achievement.
Using a mod like a skeleton key will disable achievements for that session if you use the key. I imagine any mod that adds an item to the player's inventory through a script would do the same.