Big News! We've announced ProcTHOR
iTHOR is an environment within the AI2-THOR framework, which includes a set of interactive objects and scenes and provides accurate modeling of the physics of the world.

Key Features

iTHOR is built upon the Unity physics engine and it models physical properties for objects and scenes: mass, friction, bouncing, etc.
Object Manipulation
iTHOR provides object manipulation actions: pick up objects, drop objects, push objects, etc.
State Changes
iTHOR enables changing the state of objects, for example, open/close microwave, cook food, switch on/off lights.
iTHOR enables performing tasks with multiple agents of different types.