Enabling interaction between 2D and 3D games - CNET

New technology from a virtual worlds platform developer will ultimately make it possible for developers to put out both Flash and 3D versions of a game and let players interact between the two.

Unity - Manual: 2D or 3D projects

Physics - Unity Manual

A 3D VTT Roundup and Review

The Visual Battle: Exploring 2D and 3D Graphics in Mobile Games

Stat Commands in Unreal Engine Unreal Engine 5.0 Documentation

From a design perspective, can someone make a game that switches

2D lights and shadows — Godot Engine (stable) documentation in English

Accessibility Updates in Dragonflight — World of Warcraft

Engines for the Metaverse: Comparing Unity, Unreal, and Godot