![[Late game achievement] Why didn't this work?](https://preview.redd.it/nirswitwu1kh1.png?auto=webp&s=233f87c31e36a410d1a94100ae5e44f43f14d1ce)
[Late game achievement] Why didn't this work?
My girlfriend and I are trying to get the Day 1 trophy. We had what felt like a blessed run. We opened all three lower antechamber doors (Secret Garden, Great Hall, and Greenhouse + broken lever), then managed to get the sledgehammer, shovel, and Burning Glass. We got a powered lab, opened Blackbridge, activated the satellite dish, and managed to get the experiment "Immediately, unseal one of the Antechamber Doors". However, when we got to the Antechamber, the only remaining sealed door (the north door) was still sealed.
What did we do wrong? Does this experiment not work the way we thought it did?