Many of you may know this, many of you may not but if you ever tried to play a friends game that they bought by having their account and re-downloading the game you want to play that was on their account but it put you to the trail version, the way you can play other games you don't own is by being on both accounts at the dashboard on the players account that has the game start the game and from there on use yours and then you play the full game. so if you want you could recover your friends account re-download the game like a online game some like Minecraft or something and just sign them out and let them recover after you complete the steps i said before.
well i hope this could help bye.