head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is variance, and it is a single point.

Optimization · Pure Optimization
A dungeon-crawling MMORPG where labyrinthine D&D character builds are the true endgame.

Optimization · Pure Optimization
A deep dual-class build system where optimising passive constellations and resist thresholds is the core challenge.
Dungeons & Dragons Online leans Optimization (Pure Optimization); Grim Dawn leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Dungeons & Dragons Online
Active dodging, traps, and jumping reward real hands.
Grim Dawn
Boss fights and Crucible have limited twitch demand
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dungeons & Dragons Online
Dungeon AI is scripted, never adaptive.
Grim Dawn
Solo and co-op PvE throughout; no adaptive opponent
Grim Dawn leans a little harder on variance, though the gap is small.
Dungeons & Dragons Online
Trap placements and dice rolls inject some randomness.
Grim Dawn
Drop RNG and component rolls add moderate hidden information
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dungeons & Dragons Online
Multiclass build planning is famously deep and solvable.
Grim Dawn
Dual-class mastery system and devotion tree are extensively solvable
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.