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 pausable tactics RPG where party build and tactic-slot planning win fights.

Optimization · Pure Optimization
A tower defense testing optimal tower combinations against scripted waves.
Dragon Age: Origins leans Optimization (Pure Optimization); Element TD 2 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.
Dragon Age: Origins
Tactical pause combat, low input demand
Element TD 2
Light micro on tower placement timing, minimal twitch
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dragon Age: Origins
Enemy AI is scripted
Element TD 2
Scripted enemy waves, no adaptive opponent
Dragon Age: Origins leans a little harder on variance, though the gap is small.
Dragon Age: Origins
Hidden rolls and loot tables
Element TD 2
Wave composition known, little hidden information
Element TD 2 leans a little harder on optimization, though the gap is small.
Dragon Age: Origins
Tactics slots, builds, party synergy dominate
Element TD 2
Optimal tower combos and placement IS the game
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.