Dream League Soccer 2019
These days more and more game developers are realizing that games can be great without a constant internet connection. So while like others, Dream League Soccer is way better with WiFi, it's not 100% required.
You can still play in a challenging soccer (or football) league, enjoy an entire season, and improve your team without constantly being connected to the internet. Yes, they have more options, challenges, managing tools and competitions with others, but you can play by yourself if you'd like.
There are six divisions and seven different cup series, so make a dream team, get some stamina, and go win the Dream League World Cup.