The First Templar features both single player and co-op modes. When playing solo, the player can switch between the two characters, leaving the control of the second hero to the game’s AI. At any moment a second player can join in and take control of the AI-controlled hero.
Also this week on sale:
https://store.steampowered.com/app/215630/Demonicon/
https://store.steampowered.com/app/217690/Anna__Extended_Edition/