Is 51 the last scenario?

[elendil]

Hello,
ist 51 - "the void" the last scenario of the campaign? It includes a boss called "the gloom". If so, can we continue playing afterwards?
PS: I have another question: Is there anything like envelope X in the digital version?

[pitiflauticus]

Spoilers:

The overarching story reaches kind of a conclusion but you can keep playing all the scenarios you have unlocked and the corresponding scenarios that get unlocked after that.

Regarding the envelope X, it's been mentioned before: it's not in the digital version, as they added only the contents that were physically present in the box. I hope they release it as DLC or someone recreates the contents via a mod!

[elendil]

Thank you. That answered everything.