Pretty cool game. I loved it. I do have a few things to point out, though:

-The UI feels a bit weird. You have all these panels at the bottom, but you still have to scroll sometimes, which makes it feel a bit awkward. I think it's not the best UI distribution.

-The prestige/self-destruct mechanic doesn't seem to offer much. I think you can finish the game without self-destructing, and you'll probably do it faster. I only used it once and still managed to beat the game.

-It's too short, but I mean in terms of content, The whole content is explored in like 5-10 minutes. It feels like the goal artificially stretches the game length by being a high number, but it doesn't offer anything new for the rest of the playthrough, it's just a grind. In fact, I left a few guys on scrap and a few on building, went away for a while, and by the time I came back, I had already won the game.

Overall, it's a good foundation. I think it needs more elements and content, but it's definitely fun and satisfying to play.