You might have some trouble locating Seamus' flat during your visit to the slums in Stray, since it's not clearly indicated. Our guide shows you the way to the apartment. You will also learn when you can meet Seamus and the goal of this encounter.
Location of Seamus' flat
Seamus' flat can be found in one of the side alleys in the slums, which makes it easy to miss. Start by the garage in the central part of the slums, where the Guardian is located - it's the first character you've met after arriving in this place for the first time.
Turn 180 degrees and take the distant alley to the right pictured in the screenshot. On the way, you will pass the Super Spirit Laundry building.
Seamus' flat is in the yellow-lit building on the right. Initially, it is unavailable. However, during chapter 6, you'll be able to use the small hole marked in the screenshot.
Exploring Seamus' flat - when is it possible?
You need to visit Seamus in chapter 6, during your second visit to the slums. You can also find a full walkthrough of stage 6 in this guide.
As a reminder, you need to meet up with Momo at the bar first. You will then travel with him to Seamus' apartment. Momo will reveal a small hole that will allow you to get inside (pictured above).
You'll have to meet Seamus in order to progress the game - you need to show him Doc's notebook and complete the puzzle involving the secret room, which we've described in the Puzzle Solutions chapter.
You'll return to Seamus' apartment at the end of chapter 6, this time without Momo. Use the above tips if you forget the exact location of Seamus' building.