Pat the steak cubes dry with paper towels to remove excess moisture.
In a small bowl, whisk together soy sauce, beef broth, Worcestershire sauce, garlic, onion powder, smoked paprika, and black pepper until well combined.
Place the prepared steak cubes into the crockpot and pour the marinade over them.
Dot the top of the steak mixture with small pieces of butter.
Cover and cook on low for 4–5 hours or on high for 2–3 hours until the steak is tender.
Garnish your Crockpot Steak Bites with fresh parsley if desired and serve hot.