A good side mission can make you forget the main story exists, which is either great design or a very polite trap. These games took that idea and ran a marathon with it, filling their worlds with optional quests, errands, contracts, strange NPC requests, and entire storylines hiding off the critical path. From RPGs that treat your quest log like a second job to open-world games that refuse to let any corner of the map stay quiet, these are the titles with the most side missions in gaming. Just don’t blame us if your “quick completionist run” suddenly turns into a 200-hour personal crisis.
