After a quick search, it looks like that nobody got this problem, or talks about it.
So, after using the phone, or the computer and browsing through them, or play normally, and looking the achievments, or anything that involve displaying lots of images, I get an Out of Memory error.
Yesterday I played through the tutorial, looked at the computer, and the game crashed the same way as I've clicked on the Rule34 picture.
Is there a way to force the renpy engine to increase the max memory it can use, or is allowed to use?
There's no way the game could reach my max memory available... so it's certainly an engine fault.
50 Go are still available while I play this game.