Head to head
Which one will break you first?
Two fingerprints on one grid. Both are scored through your profile, so this answers the question for you rather than for the average player.
Age of Empires II: Definitive Edition is the harder of the two for you, by 1.3 points. The gap is widest on strategy, where Age of Empires II: Definitive Edition asks considerably more than Clair Obscur: Expedition 33. If you want the gentler run, start with Clair Obscur: Expedition 33.
Axis by axis, biggest gap first
CLAIR OBSCUR: EXPEDITION 33
Turn-based with a parry or dodge on every incoming attack, so a fight you have the stats for can still be lost by hands. Learning a boss’s rhythm is the build.
Real resistance. Expect to work for it.
AGE OF EMPIRES II: DEFINITIVE EDITION
Build orders are the curve, and the campaigns teach almost none of what the game actually asks for. The hard AI does not forget its economy while it fights.
Sustained pressure. Progress is earned.