Super cool idea for a puzzle game! The menus look real top notch too. 

This feels like it was made for a tablet so some of my issues with the interface might have to do with that. It would be nice if deleting drawn sections could be done with the right mouse instead of having to toggle between the two mods. I ran into a bug where individual dots spawned from clicking the mouse button down could not be deleted. I might have missed the reset button but one of those would be nice if it doesn't exist.

I also ran into some frustration with the physics. It felt like a lot of my time was spent tweaking a solution to work with with physics after I had figured out the answer. Giving the ball a little extra force as it comes out might go a long way in helping with that.

Turning the cube with the arrow keys also felt a little awkward. It would be nice if the cube could just be rotated with the mouse.

 Looking forward to seeing how this turns out!

I beat the intro sector. This game is surprisingly fun and very well done. I really like the puzzles and objects in the puzzles and finding the solutions for each stage is fun. The only thing that is negative is it is a bit confusing in the beginning with camera controls and the dark faces of the cube. Great work though, I think you have a good thing here and you could expand on it by adding skins or something. Do you intend on releasing it soon? What are you planning on adding next to this game? 

Played through most of the game. Skipped some levels here and there.

This is an interesting game, it combines puzzle solving with dexterity, which I suffered a bit since I cannot draw a straight line with the mouse to save my life. 

I like how the main menu background changes depending on which world you choose. 

The levels are very interesting and I and the mechanics were introduced properly. Levels could use a "retry" button. Spamming the undo key until everything is empty works but it is cumbersome.

I had issues with controls like the other posters already mentioned. I will add that having to always click the cube to start drawing is annoying when trying to start a line from the border of a side so it matches a line from the other side. 

I know the game is in early development, but the physics in general feel broken, specially with the top face and rotation. Many times I watched the ball having certain motion and switch directions entirely once it switches to a different face. Take for example temp name 7 of desert sector. If you don't add any lines, the ball goes straight down, touches a booster, goes to the top and in a straight line reaches the opposite face where there is another booster. You would expect the ball to return in the exact same direction, forming an infinite loop. Instead it makes a sharp turn and goes to a completely different face. Other instances were the ball slowly moving to a side from the top, the camera switched and it started to go in the opposite direction.

Sometimes drawing a line changes how the simulation plays out in places that don't seem to make sense. Like having the ball land perfectly on a slope and after adding an unconnected line somewhere the ball now bounces.

When pressing multiple times a spin key, the cube will start spinning in the opposite direction, I believe because it tries to latch to the right face index. This is annoying when spamming a key to quickly visualize the entire cube.

Clicking the restart button while the cube is spinning in the test sector breaks stuff.

It was fun, but a bit frustrating at times. It is a real good start and I hope you will be able to develope this game further.

Hey Narwaffles, I played you game in two sittings on Wednesday, and Thursday.

I like puzzle games, but I am not a big fun of physics puzzle games, so I found that about 15 puzzles in one sitting was enough for me.

I like the mechanics, and the idea behind the game. Gradual introduction of new mechanics is good.

Some people already left some good feedback, so I am going to try not to repeat that.

Often times I found myself struggling with drawing the lines I imagined in my head to work, rather than coming up with solutions. I would like to see some line editing tool in future, things like the basic move translation tool so I can just move already placed lines instead of deleting, and redrawing them.

If I accidentally placed a small dot, then deleting them did not work. I know there is an undo button, but something like a box selection tool, and then pressing delete would be better.

I did not like how not making any adjustments to lines, and running the simulation multiple times would give different results. What I mean by that is sometimes the ball would act differently even if I made no changes. I don't know if it's just the way physics work in the engine, or maybe you don't reset balls' velocity or something, so I do not know if it something that can be fixed, or not.

I enjoyed coming up with weird solutions to your puzzles, often times skipping many things. I think "breaking the beta" is the fun way to play.

There were few times when the ball would hit the end hole green area, and it would count towards the end of the puzzle, but the ball would not go in the hole. There was also another time when the ball kept bouncing inside the green area without getting in the hole, but it would not count towards the solution.

Sometimes it felt more like a drawing challenge, than a puzzle, but I think if you add more tools for line editing mentioned above it is going to get better.

About the new test mechanic:

The cube face rotation is creative, but it is already hard to match line height on different faces even without them rotating. I think maybe rotating the whole cube instead of just the individual side would be better.

I did not do the "lights out". I know how it works, but I dislike it, and I don't think it would be a good addition to the game.

I honestly really struggled with the controls, especially as the number of faces and the complexity of the puzzles grew. some stuff I found myself wishing for was:

- using the scroll wheel to adjust the field of view

- as others mentioned, snapping to the face that's currently being viewed when changing the camera angle

- a "lock" button that doesn't change the camera angle once you let go of the cube

- generally faster/snappier animations on face change

- some way of showing the whole cube at a glance, like pic related

I liked the concept and, from what I've seen, the puzzles put its potential to good use; in particular you've done a good job of introducing and easing the player into new game elements and tougher puzzles. For this reason I feel like that it's worth focusing development efforts on stuff that complements the puzzles before adding more levels.  Good controls are especially important, because the period of time the user takes to input the solution he thought about is essentially downtime between the two fun parts of a puzzle game, thinking and winning, so you want to minimize that.

Heads up, I streamed your game. You can find a recording of the stream here:

Fun game. I wish moving the cube with right click would leave the cube to the face it's facing instead of having to use the arrows. Somehow I managed to make a red dot that I couldn't erase unless I used the rewind button. I had drawn that red line over another red line multiple times (if you need context to reproduce)

This is a pretty cool puzzler. I think it's a little slow to start, and it feels clunky to draw, especially since you can't start drawing off the cube, but I could see this being very fun.

Nice the idea is good and the game worked and your UI is making me jealous with how clean it is. Have you capped the max frame rate? my gpu was working harder than i think it should have been.