What is the most financially successful video game company as of 2021?
{'directed': True, 'multigraph': False, 'graph': {}, 'nodes': [{'type': 'QUESTIONS_ENTITY', 'name_': 'Q210167', 'id': 0, 'label': 'video game developer'}, {'type': 'ANSWER_CANDIDATE_ENTITY', 'name_': 'Q59521898', 'id': 1, 'label': None}], 'links': [{'name_': 'P6186', 'source': 0, 'target': 1, 'label': 'category for eponymous categories'}, {'name_': 'P971', 'source': 1, 'target': 0, 'label': 'category combines topics'}]}