After some feedback and a lot of improvements and bug fixes, this is version 1.1 of Math Rocket. Yes, I changed the name, because while "Euclidean space explorer" is clever to those who know what it means, it just confused people and made the game hard to find. This update come with more new levels which will make the learning curve less steep.  I also overhauled the level system so unfortunately you may lose your progress. But that's all good, since you have new challenges to solve anyway. 

Note: The Web version won't work on iOS, because Apple will not get of their buttocks and fix their WebGL 2.0 support. Also I can't afford to pay their insane fee to be able to put it on the AppStore. I am looking into a workaround for iOS users by maybe using AltStore.io to distribute the iOS version. But for you Android users, enjoy!