This looks very fun! It reminds me of a game called Euclidea that I played and enjoyed a while back, though the interface for this looks pretty different.

https://www.euclidea.xyz/

Congrats on the release!

The detection of solutions seems a bit buggy.

In the fourth task "Add the angles BAC and EDF on the given line GH", I drew the circles DF and EF in, then connected E and F with a line segment, and it told me that I solved the problem without touching the points GH at all...

Edit: In fact, simply drawing the line from E to F is already enough.

Edit 2: Similar when doing the "Perpendicular to line in a point not on a line": Drawing any perpendicular is enough, even if it is not going through that point.

Thanks for sharing this!

This is a cool game concept and I feel like it compressed a lot of geometry intuition into a short period of time. I have a math degree but managed to never take a geometry class in college or high school, so this was the first time I've had my (non-existent) knowledge of geometry "graded."

I hope more games like this can be incorporated into the formal educational process in the future; I feel like my childhood video game addiction could have been exploited by the education system just as much as the gaming companies, but with a better outcome.

Maybe the same type of game could be made for other subjects, too.

I'd like to see the concept extended in 3d with augmented reality with a limited set of construction tools. Maybe I'll try to do that if I get the time.

Also, I just realized that I only played the tutorial! There goes my morning.

Nice! I was having fun with it, but then I got to "divide the segment in half". It's super easy, but it's too zoomed in for me to click on the snaps I want, and I can't find a way to zoom out. Clicking "full screen" gives the same level of zoom. What am I missing?

Edit: I just now tried Euclidea for the 1st time, and even tho its UX is a lot more polished, it starts off with lots of lines & midpoints. I appreciate that Ecocoru starts off with more circle-oriented problems, so that we can get a taste of using a compass. The 1st hexagon problem, though easy, was a joy to discover!

How does the game check whether the solution has been made? Genuinely curious.

Also, I had found some bugs. Like when we are asked to create a perpendicular, any line that starts properly and is almost done but isn't done fully is treated as solution. Also, when it asks to create a triangle, but the solution is complete, it still passes. Although one could argue that the solution would be reached either way, in future cases where a person is nowhere near the full solution might be confused when the game marks the puzzle as solved.

There was a nice educational game for mobile devices called Dragonbox Elements that also did this, in a very kid-friendly way. But I always thought Dragonbox's interfaces (they had an algebra game too) were almost too nice for kids' games, I wanted something more useful as a proof assistant. So very happy someone is exploring this space further!

logitext.mit.edu/tutorial was also something similar, an interactive, puzzle-game like interface for proving statements in the sequent calculus. Maybe that can be an inspiration too?

Very nice. A small suggestion would be to have a list of the steps shown on screen - like 1) draw circle centered on A, 2) extend line A-B (or whatever).

The thing where Escape is supposed to get you out of the arc tool but instead drops you out of full-screen mode is super annoying.

I can see the students could take the advantages of this game to geometry lecture. Not only fun but also educational. Thank you.

On Firefox ESR 102 on Debian testing, I could not complete part 3 of the tutorial where I had to make arcs of a circle. I even eventually filled in the circle entirely, but it won't recognize it as completed.

Very cool.

If you do machining, carpentry, construction, etc. you find this kind of stuff is surprisingly central to everyday work - you'll use either geometry constructions or the concepts behind them CONSTANTLY. Very useful to peak your skills at doing drills like this.

Bravo!