At least personally, its a lot of the shorter, gameplay-focused games that always leave me wanting more, or wanting to further improve, without having some unbeatable new-game++++++++ mode or anything overly RNG based.

A couple games I've 100%ed that still have significant bonus/optional content outside the main plotline include:

• Inscription - Willingly played through the story twice and spent nearly as many hours on the bonus new-game+ mode. Super solid gameplay, that while well explored in the base game, leaves plenty of room to further experiment and perfect your strategy.

• Just Cause 3 - while there is a ton of bonus content, its not overly hidden, and the core gameplay is solid enough that challenges feel fun and rewarding, while travelling around gathering collectables is satisfying in a chill, podcast-listening, but not unengaging way.

• Hotline Miami - after completing the game, I wanted to go back and get a A+ on every level because the gameplay was fun and I felt I still had more room to grow. "The puzzle" wasn't as fun, and I did use a guide, but I was just happy for any reason to play through the game again.

• Wolfenstein the New Order - again, just a solid gameplay loop that made me want to keep playing, with bonus objectives that worked as an objective rather than a chore. Also, unlike later ID shooters, it doesn't have the "beat the whole game without dying" achievement, which just feels too punishing over mistakes that may be minor or downright unfair.