http://store.steampowered.com/sub/14311/
A Valley Without Wind 1 is what happens when you let someone who is completely batshit insane take on the metroidvania formula. The word massive can't even begin to describe it - a completely randomly generated world will continue to expand so long as you wish to progress in a direction. Traverse the lands with a mixture of fast platforming and a spellcasting system that is deeper than the rabbit hole appears. The dark side of this sheer glut of content is that after a while it becomes a pure numbers game and is powered simply by your will to continue.
A Valley Without Wind 2 takes the open ended nature of the first and tosses it to the wayside, instead wanting to concentrate on the strategy element which can be a huge negative if you were a fan of the platforming of the first. It tries a bit too hard to push way more on you at once, so your milage may vary.
The upside to this is that both are available with each other, so you can get both for the very cheap price of $3.74 and find out which one is more your speed. If you're able to get past the gaudy visuals, occasionally confusing subsystems and heavy reliance on your enjoyment of lootwhore-vania games, you should consider what AVWW1&2 have to offer.