Usually, yes. This one is effectively a d6 (a cube), but two of the flat faces have been replaced by curves that connect opposite flat faces. As such you've got four flat faces that the die can actually stop on. If you ignore the curved parts but consider all of the flats to be separate faces, it's a d4. If you consider two flats connected by a curve to be a single face altogether, it's a d2.

It should come with some bizarre consequence, too. If it were the Oregon Trail game, there should be a tiny chance that the player finds an ancient artifact that glows and hums when touched. An alien ship swoops in and abducts the party, forcing them to join the crew. From there on, it's a space pirate game with zero explanation why and no references in the product literature. Also, customer service pretends not to know about it, if contacted.

No, dN means there are N different outcomes. Does not matter if they are flat or anything. Cube with two of each number from 1 to 3 is a d3.

This has 4 possible faces it can land on, though. It's a D6 with two sides rounded to make them impossible to land on.

It has 2 surfaces. It has 4 or 6 sides it can rest on IMHO. I'd need to play with it to find out.

Fuck caltrop d4s, all my homies hate caltrop d4s (it's me, I'm all the homies)

The edge of a coin is a 3rd side though

every other die has sides that aren't counted if you're doing that.

dice are just flattened spheres. they only have one weirdly shaped side

A side in this case is a specific area that allows for differentiating outcomes

This website looks like it was made in 1999, but it documents a project from this year. I love it. It loaded nearly instantly on my phone.

It has two outcomes, hence is a d2

I love his commitment to the bit. True dedication

Thanks, not sure why my comment is not showing as deleted to you. I deleted it just after posting after realizing I misread what the previous post was saying.

I brought this up in maths class once. The teacher agreed that the edge was a possibility and since he was involved in football, they used to flip the coin and let it land on the ground. More than once it stuck in the mud in the edge. Then told us to ignore that possibility.

the flattening is what makes them not spheres and have sides. If we applied this "logic" then literally everything is just anything but in a different form - which makes no sense

https://youtu.be/b6S5gHjuN48

A die can land and stand on a corner if you do it precisely enough.

There are 4 stable orientations and 2 unstable equilibria

This is correct. It's a d4 that's just as cleanly a d4 as a regular d4 with rounded corners. Both have parts that don't belong to the sides, since there's no defined outcome where the dice comes to rest on one of the rounded non-side parts.