This is quite a nice idea for a game. Art is really nice and consistent, and it makes the game feel polished. I especially like the fact that some of the old building remains even in later ages, that make so much sense when you think about it. Not sure if this is intended, but I got stuck when there are fewer than three people needed teleporting later during gameplay, and I don't seem to be able to progress.

Things I like:

• Visually beautiful with nice aesthetics
• Easy to understand gameplay loop
• Nice map design and building consistency as mentioned above

Suggestions:

• There's currently no sound to the game, which makes it feel a bit off. I think some nice little soundtrack, plus some sound effects, will definitely elevate the game a lot
• The cursor is not locked in both windowed and full-screen, which makes gameplay really clunky when the mouse is constantly going off the screen

Anyway, good job on making this game! Keep up the good work!