Building comparison
head to head
Half-LifevsSanctum 2
Neither is meaningfully harder - they pose close to the same test. The widest gap is optimization, and it is a single point.
Half-Life
Execution · Practiced Mastery
Landmark scripted FPS following Gordon Freeman through the Black Mesa disaster.
Sanctum 2
Optimization · Practiced Mastery
Hybrid tower-defense testing maze optimization backed by first-person aim.
Half-Life leans Execution (Practiced Mastery); Sanctum 2 leans Optimization (Practiced Mastery).
Half-LifeSanctum 2
Axis by axis
Execution6 vs 6
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Combat aim and infamous platforming sections
Sanctum 2
Weak-point shooting during waves carries real aim demands
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Marines flank by script, not by modelling you
Sanctum 2
Alien waves path predictably toward the core
Variance2 vs 2
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Half-Life
Set pieces surprise only on first run
Sanctum 2
Wave compositions vary mildly between maps
Optimization6 vs 7
Sanctum 2 leans a little harder on optimization, though the gap is small.
Half-Life
Resource routing and encounter knowledge for speedruns
Sanctum 2
Maze layouts and tower economics are the solvable heart
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.