What are the best couch/local co-op PC games?

The main campaign has a staggering amount of content. The maps you'll explore are massive with various routes, containing numerous quests, battles, secrets, and even ambushes along the way. Even if you rush through the story, a single playthrough will last you about 50 hours.

D:OS2's greatest strength, however, is the ability to choose. This includes choosing your character, your companions, what builds to use for them, what route to take when exploring the map, how to solve various encounters and quests, and many more. Every single choice affects how the story progresses, and a bad decision early on can come back to haunt you later. As a result, there's enough variety to keep multiple playthroughs new and exciting from start to finish.