Can I play with my sister owning 1 copy only ?

[Shushei]

Hello, wasnt sure where to put this, so if its needs to feel free to move the topic somewhere else.

So I wanted to play game with my sister but only I bought the game (whic his by the way one of my best money spend in ages I even played it more than Witcher ) is that legal / posible to do ?

[Zeblote]

The game is DRM free, you can install it on her pc aswell. Legal... who knows? Just do it and if she likes it aswell you can just buy another one

[Koub]

You sister can play the demo - or even try a game on your copy. If she likes the game and wants to play it, seems logical she buys her own copy.
Note : The only people who are legitimate to give an official and definitive answer are the devs. Any other person can only give a personal opinion (which is what I'm doing right now).

[DaveMcW]

Intellectual Property and Sharing

• You may use Factorio and other paid content for your own personal use.
• All the content in the game is owned by us. This includes the user provided content that makes it into the game as well (for instance namely translations).
• Don't sell, copy, transfer or distribute the game, its hacked / altered version, any of its parts or any of our paid content.