The initial design and idea comes from a tutorial given by David Wehle in his GameDevUnlocked course. It uses the terminal deactivation, winter setting, and huge door opening. I took the idea and changed up the story and other small details, but the basic premise is the same. If Alex used the same tutorial, this may be causing our games to look and play similar. Thank you for mentioning this and thank you for taking time to play the game!
I understand this might be a coincidence. Yet, it truly amazed me, because I watched tutorials on game development and there are some games, which you can clearly see are little similar, but not as much as your game and Alex's game, it's like the same color pallet, font, I mean, mechanics might be the same and the gameplay, the premise overall can be the same, but even the little details are very, very similar. Just strange, it's all.
Edit: For example, if it was from a tutorial, I guess you would have change a color or font, I don't think those 2 are very important to make the game as mechanics. I understand the mechanics are same, but font? I don't know.
Listen, I understand that, I have noting against this, honestly, I am glad the developer has published the game and made it work, it's amazing. Although, I can't help myself to notice that these are the only 2 games I've seen so far with the major similarities and even minor details, being similiar. I've doon these type of courses myself, Blender, Gadot, Unity, Unreal, Maya, but I've never fully copied the project, as if color and scheme. That's just strange, nothing bad, just strange. I contacted the developer, who made the game before this and hope they answer the same.