I am a huge fan of Progress Knight and I have played many of the available version of it. This was a solid entry into the genre, and there was enough here to make the game feel different, but not lose the spirit of what makes Progress Knight great.
First off, the skill tree was an interesting prestige layer to add to this concept. In general, when you're talking about skills that may take 1-2 hours of actual real life time to invest in though, you want your explanations to be very clear. For example, when looking at the upgrades for Time Warping on the skill tree, it was unclear whether the upgrades would stack additively, or multiplicatively. This makes a huge difference in the context of this game, especially since the SP reward is tied explicitly to hitting 200 years old, and not to any kind of performance threshold on the player's part. It turns out, that you get 2x time warping, then that time warping is multiplied by 3x to get a total of 6x, which was great, but investing in that was definitely a coin flip. The same hold true for the SP upgrade, though that one feels like it's worded a little more explicitly.
Out of dumb luck, I didn't invest in the Territory upgrade until almost the very end of the available content, which was great for me, but I could absolutely see someone being very upset if they saved up 100 SP to invest in a skill that explicitly claims to "help speed up the early game", only to find out that the 100 SP they saved up over potentially DAYS of gameplay contains literally nothing. PLEASE put a warning on the skill that it is unimplemented, or better yet, just don't include it at all yet.
I also found the choice tree to be pretty bad. As mentioned before, there's basically no reason yet that you would ever want to decrease the Time Warp value, so offering that as a choice at all, at least at this stage in development, just feels like a trap. Also, if you want to deincentivize reliance on Time Warp, you could make it so that the Money = SP upgrade is implemented significantly sooner on the skill tree, or is even just a part of the progression by default. By the time you're cranking out 45 SP, you're well in to the final progress spike of the available content, and that doesn't even feel much like a meaningful upgrade.
All in all, I really did enjoy this game. I think you would benefit from further diversifying this game from Progress Knight, and it looks like you're already heading that direction. Maybe you could even implement an upgrade that turns the initial gameplay loop into a prestige layer that is automated, something like what you get in Progress Knight Quest. I was disappointed that it ended as soon as it did, but I am excited to see where it goes, and I hope that you will take this feedback into account!