Risk of Rain 2 is in These Lists
In addition to the similar games listed above, which have been linked to this game specifically in the database, you may find games with a similar theme to Risk of Rain 2 in the following lists:
Video games where you adventure into a harsh setting, try your hardest to survive and slowly develop your abilities but then inevitably die are often called Rogue-likes. This is because one of the first games that offered this style of play was called Rogue.
These are interesting games for families, not only because their difficult nature leads to shorter sessions, but also because they foster perseverance and coping with losing. After dying you are sent back to some sort of central village where you can choose upgrades for your next attempt. The incentive to play again once you have been killed is usually that you start with some more equipment or skills.
In this way, by belligerence and a slowly learned understanding of how the game world works and how best to survive, you incrementally get a bit further each time you play. Here are some really good roguelike games for families:
Online games are great because you have a world of opponents to take on and defeat (or be defeated by). But beyond the competitive element of these games are often a strong sense of community and camaraderie.
Players enjoy making new connections in these games, as well as connecting with wider family and friends. Listen to the chatter while children play these games, and you hear as much talk about homework, television, YouTube or what's happening in the world as who to shoot in the head next.