Simple games and short videos win because they’re easy to understand right away...

https://www.tumblr.com/valiantpandemoniumwraith/821710110706532352/why-do-i-get-invested-in-outcomes-i-cannot

Simple games and short videos win because they’re easy to understand right away and keep you visually hooked. You don’t have to think too much, which lowers the barrier to jumping in