Dishonored 2
50 Achievements
40-50h
Under the Table
Obtain Stilton’s Master Key from under the table, with the guards there conscious & unalerted
3.0%
How to unlock the Under the Table achievement in Dishonored 2 - Definitive Guide
You'll need to master the switching between past/present to get through barriers, etc. For example, switching to the present to move up to the barrier keeping you in the piano room, then switching to the past to find yourself past the locked doors and with the barrier gone.
Once you've snuck into the dining room (you can do this either from the first floor, or by going upstairs and working your way onto the balcony surrounding the dining room), make sure you're in the present time line, then go over to the table and find a spot where you can crawl under it. Switch to the past and you should be able to grab the key off of a cushion to unlock the achievement. Remember, you cannot knock out any of the guards in this room or alert them for the achievement to unlock.
This achievement can be earned during Mission 7, A Crack in the Slab.
After obtaining the Timepiece from The Outsider, the game will inform you how it can be used: while equipped, tap to alternate between timelines (past/present), and to see a visible indication of what is happening in the other timeline. With this in mind, equip the ancient relic and "time travel" out of the room until you are in the hallway on the first floor. Your destination is on the opposite side the hallway.
Travel back to the present and when you reach the blocked door at the end of the hallway, time travel to the past to get through the blocked door and into the dining room, then return to the present immediately. Move through the room, crawl underneath the dining table, and time travel to the past once more. The room will be filled with guards; ignore the guards, loot the key that is on the chair, and the achievement will unlock.
This achievement can be earned during Mission 7, A Crack in the Slab.
After obtaining the Timepiece from The Outsider, the game will inform you how it can be used: while equipped, tap to alternate between timelines (past/present), and to see a visible indication of what is happening in the other timeline. With this in mind, equip the ancient relic and "time travel" out of the room until you are in the hallway on the first floor. Your destination is on the opposite side the hallway.
Travel back to the present and when you reach the blocked door at the end of the hallway, time travel to the past to get through the blocked door and into the dining room, then return to the present immediately. Move through the room, crawl underneath the dining table, and time travel to the past once more. The room will be filled with guards; ignore the guards, loot the key that is on the chair, and the achievement will unlock.