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

Optimization · Practiced Mastery
Double Fine's tower-defense shooter where you fight TV monsters from a customizable trench-mech.

Optimization · Practiced Mastery
A chaotic co-op action game where wizards combine eight elements into thousands of spells, often frying each other.
Iron Brigade leans Optimization (Practiced Mastery); Magicka leans Optimization (Practiced Mastery).
Magicka leans a little harder on execution, though the gap is small.
Iron Brigade
Manual aiming from your walking trench-mech
Magicka
Typing element combos quickly mid-combat is the hands test
Magicka leans a little harder on reads, though the gap is small.
Iron Brigade
Tube waves arrive on schedule
Magicka
Enemies are scripted; friendly fire isn't adaptive
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Iron Brigade
Loot drops randomize gear options
Magicka
Co-op friendly-fire chaos adds unpredictability
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Iron Brigade
Turret placement and mech loadout economy
Magicka
Discovering and exploiting spell combinations dominates
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.