Note the precision with which his family was murdered: the IOF were able to blow up a single apartment without seriously damaging their neighbors. Keep that image in the back of your mind next time they try to pull an, “oopsie doodle, we accidentally bombed our fifth school this week!”
Unfortunately, if you’re looking for a free download, the game you’re describing doesn’t exist.
The closest I can think of is Postknight 2. There’s unobtrusive (optional) ads, and the full game is playable—start to finish—without spending any money.
It’s very cute, and you can get pets… but it’ll take some dedicated playtime to unlock them for free.