Rthro

Rthro is a new body type that was implemented in late 2018. It was first revealed in 2017 in a developer conference. The feature allows R15 body types to be scaled and also have more flexible animations. Currently Roblox has been expanding on this feature to add things like facial movement and layered clothes in the future.

Why It Flopped

 * 1) It goes against the style of Roblox's blocky aesthetic. The slender and realistic models contrast with the blockier and toy-like models.
 * 2) The models themselves (specifically the humanlike ones Roblox made) can be uncanny and don't feel human at all. The porportions are odd, bigger hands and head, thinner limbs, the faces or even animations look off-putting.
 * 3) Roblox recently has been pushing hard for Rthro and realistic models to become part of Roblox, their promotions, advertisements and presentations show. The main concern is that the excessive promotion and investment in anthro alienates the userbase. These models aren't what Roblox represents. It's been already established that Roblox has been blocky, and shoving these realistic models to coexist is a divisive move, it just doesn't transition well.
 * 4) * At one point Roblox changed their branding guidelines so that only non blocky fully humanoid avatars could be shown in their advertising. This rule got reverted after a few days but this shows the intent Roblox goes to invest in Rthro models.
 * 5) * The unsubtly excessive promotion of anthro has led to concerns about the future Roblox avatars since it feels like they are trying to distance themselves from the blockier models.
 * 6) * A possible reason they are implementing anthro is because it appeals to investors, newer developers and older audiences. But this range feels too niche and majority of the platform is based around the blocky style.
 * 7) There is an argument that rhtro was made for developing games and for creative diversity, but this would backfire because you'd end up including some avatars that would be very intrusive to the game's environment.
 * 8) * This is especially the case for games that mainly only enable R6, rthro models in R6 mode move unnatural compared to R15. You'll also end up with weird scaling.
 * 9) * Also some games can be abused with Rthro models in which they have thinner body parts and in some cases you'll have bigger hitboxes wearing them which makes them undesirable in combat games.
 * 10) Limited customisation. You cannot put shirts or pants on most of these models as the textures cannot be changed and some accessories won't fit well with the models.
 * 11) Some of these models were obtained from asset stores such as Unity store which feels lazy and most of these models aren't for games with a style like Roblox.
 * 12) * Magma Fiend was infamously used in an NSFW game.
 * 13) Rhtro has been criticized to be potentially abused by Oders and trolls with some avatars and the scaling feature. Despite this, rarely any Robloxian wears it seriously.
 * 14) Barely any game that supports Rthro, scaling or matching the style of these models. Many of the places environments are scaled to suit R6 players and the textures are simplistic in comparision to the detailed anthropromortic humanoids.

Redeeming Qualities

 * 1) There are a handful of models that are decent and somewhat fit Roblox such as Noob attack or Cyclock.
 * 2) If you have enough creativity, then you could create a good looking rthro model.