Furi
Fast paced 1vs1 boss rush game with tight controls and a godlike OST. For some reason forces you to slowly walk between boss fights though. Can be automated with a button press while you grab a coffee. Focuses a lot on timing dodges and parries, and parries are rewarded with high damage counterattacks. Almost all fights are a mixture of melee combat and bullet hell segments. It's also stylish as fuck.
Shadow Tactics: Blades of the Shogun
Stealth based real time tactics. Throw rocks to turn guards around and sneak by without being seen, kill the from behind or just knock them out (has ingame achievements for not killing anyone among other fun stuff). It's squad based, with characters that play vastly different. I won't spoiler you on what they can do, all you need to know is that you can combo their abilities, either in real time or with a mechanic that allows you to queue up actions to be executed at the same time. Most sections feel like a puzzle, where you will stop and wonder how the fuck you can get to your target without being heard/seen. Make sure you don't leave footprints in the snow where someone might see them. Play on the highest difficulty, you will enjoy it.