>>715622052
You could probably add Beyond Citadel to the Single structure with Finite Size tier (the mapmaking in the game is so primitive that this fact rarely is shown to the player tho)
>>715623682
The secret route ending sheds more light onto that and it's a sad one.
Incredible game though, and an ever more incredible OST.
https://youtu.be/YxYx4ZO3ue8?list=RDYxYx4ZO3ue8