head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

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

Optimization · Practiced Mastery
The original tomb-crawling platformer, a spatial puzzle solved with careful jumps.
Iron Brigade leans Optimization (Practiced Mastery); Tomb Raider leans Optimization (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Iron Brigade
Manual aiming from your walking trench-mech
Tomb Raider
Grid-based jumps need deliberate, precise positioning
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Iron Brigade
Tube waves arrive on schedule
Tomb Raider
Wildlife and guardians follow fixed scripts
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
Tomb Raider
First-run trap and secret locations are unknown
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
Tomb Raider
Levels are spatial puzzles with solvable routes
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.