The phrase "polished game" means a video game that has been carefully developed and has a high level of quality and refinement. It implies that the game is well-designed, runs smoothly, and has minimal glitches or issues. Full definition
I'm about a quarter of the way through, and so far, it's just a more polished game with less punishing gameplay. (gameological.com)
I've had the opportunity to play some of the most well polished games ever made, and there are still plenty of titles out there for me to snag. (n4g.com)
It is a very polished game with exceptional detail on every wall, corner, building, character and environmental element in a destructive yet magical land. (thisisxbox.com)