Astalon: Tears of the Earth. Super charming retro-style metroidvania with a sort-of rogue-like twist. When you die you go back to the start of the map, but everything you've done stays unlocked, and you get a chance to visit the store for upgrades. I thought I would find it really frustrating at first, but instead I felt eager to go again with a new upgrade or two under my belt. As you progress you open up the usual shortcuts, so it never really wastes your time