On the YouTube channel Old style gaming you can see the best looking games for the Commodore C64. A few examples are: Armalyte, Barbarian, Creatures 2: Torture Trouble, Defender of the Crown, Elvira: Mistress of the Dark, Flimbo's Quest, I.O., Katakis, Last Ninja 3, Mayhem in Monsterland, Nebulus, Nobby the Aardvark, Rainbow Islands, Summer Games 2, Turrican, Winter Games and X-Out.
The best looking C64 games - part 2.