Root is not RPG but very much strategy - it's a war game set in a forest where the competing factions are Cats, Birds, a rebel alliance of assorted critters and a solo Racoon. It is a fantastic game!
The cons would be - the rules are quite hard to pick up straight away and it's 4 players only, so it depends how many of your family you want to involve.
Woah! Root looks like the type of game I was hoping to find out about. Thanks for the suggestion!
I would suggest camping out on https://www.boardgamegeek.com/ and seeing whether anything tickles your fancy in the suitable genre and weight category. Advanced search, or the genre-specific rankings are very helpful.
Many folks make geeklists that address questions such as yours as well.
Such a good idea. Thanks for the suggestion.