This game is so cool! I almost didn't beat it.
Some feedback (with spoilers):
1. So, the UI on John Mullard's beta copy of the CTF makes it look like I can't click on the start game button. The text on the button is a really similar gray value to the button block, and the mouse doesn't change shape to indicate that the button is clickable. This sounds like a minor issue, except I spent way too long trying to make another stone because I thought that I needed another stone to make the game playable.
2. The game is really difficult and confusing to play. And on the one hand, that is fantastic. It is so satisfying to solve puzzles without any handholding. But on the other, some parts are really frustrating because there's almost no indication or feedback on what I'm supposed to be doing. For instance, when I was in the ocean with the snake monster, I fell in that ocean about 4 or 5 times before I tried finding help online for what I was supposed to do next (was I supposed to let the monster kill me? Was I supposed to kill the monster? Where was I supposed to go?). And the only help I got online was "capture ALL the blue flags." And that's when I finally noticed a really faint blue light coming from behind the monster that I was able to swim to (after, of course, trying to swim directly for the blue, flag-like monster). I understand if the intent is to make it difficult intentionally (because we're supposed to be playing as a snoop on someone else's computer, so if we can't be bothered to hunt for difficult things, then what's the point), but it'd be great if there was a little more help in the game. I don't know if it's possible to add any help to the game while still letting the player do pretty much everything on their own.
But really, truly, this game is so clever and strange and mysterious. I can't believe I waited so long to try it.