Feeling lazy and hungover today, so I'll make a little post.
Terraria. This is a game that I have recently become addicted to and I don't even mind that I'm addicted because it's awesome.
Basically, it's a 2D-minecraft-style-fantasy-adventure-RPG. Awesome, yes? You earn money by defeating enemies and traversing large cave systems, finding loot and more monsters on the way. You can spend this money after getting people to live in the town that you create with wood/stone/etc that you need to collect.
This game just seems to be limitless and I'd strongly suggest you buy it as it's also pretty cheap on steam.
Now my mind's gone blank, so I'll leave you with a trailer.