Just check the quest list if you want to hunt some quests.
It's a bit subjective to say what makes a good game. Some games are good for me which you could hate and vice versa.
It's a hit and miss, check the quest list and play some of the games, if you'll like it, you'll like it and if not, you gave it a go nonetheless. Some quests involve rpg games like final battle fantasy or knighttron, whilst others are shooters such as bullet heaven or mmo's like dawn of dragons. Some are puzzle games like the forgotten hill series or dead detective.