We are excited to announce the new part of the Door game franchise, titled Door4:Ultimatum.
This game will continue the storyline of Door2:Key and Door3:Insignia; however, you do not need to play the previous parts for a comfortable experience, as this part will be quite unique. You also do not need to know the mechanics from the earlier games, as this part will feature completely new gameplay discoveries, while still retaining the beloved classic puzzles with doors.
You can expect an engaging story, original riddles, and plenty of secrets and Easter eggs to find.
https://store.steampowered.com/app/3190610/Door4Ultimatum/