Fixed now. Thanks!

Ah shame, I wondered if it was a new term (and type of confusing game environment) for me to learn about.

non-euclidean is an ill-fitting name, It's just extra dimensional, still within euclidean constraints, and generally not even making full use of a fourth dimension,

These games only explore allowing overlapping 3-dimensional spaces with clearly defined boundaries between those overlapping 3D spaces.

This is true of many ‘non euclidean renderers’ but in this case it is actually using a hyperbolic plane as the playing field.

Higher dimensionality is largely irrelevant to whether the geometry is euclidean or not.

Most games set on a globe are, like, say, planetary annihilation.

Yes, but we're all basically familiar with elliptic geometry, and as a result it's not terribly interesting or surprising.

Hyperbolic geometry, on the other hand, is alien to most people, (especially fractal like the projections into 2d and 3d), so when people wave their hands and say 'non-Eyclidean geometry!', that's what they usually actually mean.

Try actually watching some of the hyper-rogue gameplay: https://www.youtube.com/watch?v=lX5eCfRSCKY

I assure you, it's more interesting as a geometric visualisation than planetary annihilation is.

More technical reading here: https://math.stackexchange.com/questions/1407550/what-hyperb...

Yeah it’s nice but at his core non-euclidean geometry is just about the parallels axiom. The dimensional aspect is what makes this game interesting, not the euclidean aspect.

I believe op was just referring to the hn title which has a 'y' in place of the 'u'. The original URL does not use that spelling

Funnily, the title of the HackerNews post about HyperRogue in 2015 was "non-Euclinean roguelike". But it got fixed later.

Hi Zeno! I love your work on IVAN3D, and Necklace of the Eye!