Using the 3D Heavy Core, Trial Keys, and Trident

Heavy Core

Nautilus3D replaces the Heavy Core with a 3D model and higher-resolution texture. When you place it as a decorative block or display it in a vault room, view it from a few blocks away so the geometry reads properly. It works well as a centerpiece on a pedestal of deepslate or as a trophy in a trial chamber recreation.

Trial Keys and Ominous Trial Key

Both the Trial Key and the Ominous Trial Key are retextured. These are held items, so the change is most obvious in first person and in item frames. Put them in item frames near your vault entrance to label which key opens what, and check them in your hotbar — the new detail makes the two keys easier to tell apart at a glance, which matters when you are being chased.

Trident

Trident gets a 3D model too. The extra depth shows up when thrown and when held, so it looks better in a weapon rack or on an armor stand. If you display a Trident on a wall, angle your view rather than looking straight at it — the model's silhouette is the point. None of these changes affect damage, durability, or any gameplay value; they are purely visual, so your existing gear keeps working exactly as before.