Terraria is hands down my favorite 2D game. It has lots of fun content and allows your creativity to run wild, with many differents structures to build and different classes to choose from. It has many bosses, weapons and armors and has a really good replayability value, as you can play all over as a different class and go for a different difficulty. There is alot of diversity in creating your character for both genders and it's also really fun to play in multiplayer. If you get tired of the vanilla stuff, download mods with tdmodloader which completely changes the game depending on the mods you download. It's an insanely great game and I can say this game is worth a try no matter what you're into.