Deep Rune

Here is an excerpt from Deep Rune's Steam description:

Deep Rune is a side-scrolling adventure game that seamlessly blends RPG mechanics and puzzle solving, all set in a mysterious world rooted in Norse mythology. Delve into the depths of an ancient underground ruin in search of the Deep Rune, a long-lost relic that is said to grant one the means to ascend to the legendary High Realm. Along the way, you'll need to strategically manage various items, magic, and stats in order to bypass the terrifying creatures that lurk within. Are you prepared to unveil the true nature of the Deep Rune?

Features:

• Full mouse control, with optional keyboard controls (a mouse is required).
• A handcrafted non-linear game world that rewards keen explorers.
• 6+ playable characters with unique traits that require different strategies to play effectively.
• A variety of items, weapons, shields, rings, and magical runes to collect and make strategic use of.
• Dynamic difficulty that doubles as a scoring system. Higher scores come with handsome rewards.