Interaction with objects much like the penumbra games?

Hey im currently working on a horror game and i want to add an interaction mechanic where the player can pick up and move items much like in the game series penumbra. If someone could tell me in detail and not briefly this would be a massive help as i have looked at various tutorials for things such as a gravity gun and they are very vague. Thanks in advance! :slight_smile:

Iā€™m looking for a helpful tutorial or similiar, too. :slight_smile: