I've posted "Memory Castle" on GameJolt as a free download for Windows. It uses artwork from OpenGameArt almost exclusively, primarily sprites by Hyptosis, and I'm really grateful to the contributors to this site for sharing their awesome work!

http://gamejolt.com/games/rpg/memory-castle/27326/

Memory Castle is a minimal dungeon rogue-like with a twist: at the beginning of each stage, you have a few seconds to memorize where all the items and monsters are, then they're hidden and you have to make your way to the exit, picking up items to build your stats and avoiding higher level monsters if you can. There are 30 stages to clear, which takes about 10 minutes, but there is perma-death and it gets quite difficult so it may take a few tries to clear it.

Additional features include 3 unlockable character classes, an interactive tutorial, 7 trophies, 2 game modes, and original music (available for free as well on GameJolt).

It was designed for tablets/phones, so this is really a test version for gathering feedback. It is feature complete and can be played through from beginning to end, but I am continuing to make balancing tweaks and other changes, so if you do try it and run into any problems, please let me know!  Thanks for reading my post.