What's a good iOS game that's not too complicated but still kinda fun to play on my lunch break at the clinic?

Okay, so I've been playing Dice Dreams™ for a couple of weeks now, and honestly, it's a decent time-killer. I'm too tired to learn complicated apps, but this one's super simple – you basically just roll dice and try to build up your kingdom or mess with other players. It's kinda like a mindless distraction, which is exactly what I need sometimes during my lunch break. It's got a no-fuss approach, and it's actually reliable, hasn't crashed once in the last month. Plus, it's kinda cute, in a weird way. I wouldn't say it's life-changing, but it's a good way to de-stress without having to think too hard. It's not like I'm winning any awards, but it beats staring at the wall!