They are very different actually. Outbreak has puzzles with little combat. This one doesn't seem to have any puzzles, it has very clumsy movement and animations, soldiers appear as enemies and not just zombies, and they kill you in a few shots, but so do the enemies.
https://youtu.be/AMiYoCuIb0s
https://store.steampowered.com/app/2946320/Sofie_The_Echoes/