Vagante is an upcoming indie title, a mix of the action, adventure, platforming, and rougelite genres. The game features randomly generated dungeons filled with deadly and surprising traps with a fog of war mechanic, variable items and weaponry, and of course the signature mystery potions that fill most roguelikes. The easiest comparison to make is Spelunky with RPG elements, but it also gets inspiration from Castlevania, Metroid, Dark Souls, and Stone Soup. The game is currently in alpha and has 3 playable characters with different skills and starting items, and allows you to play 4 levels each with its own boss (you can keep going afterwards).
You can download it for free from its IndieDB page.
If you would like an idea of what to expect you can watch
Indie Impressions - Vagante (uses a somewhat older version of the game), but you could download and make several attempts yourself in the time it takes to watch the whole thing.