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 · Pure Optimization
Budgeting steam movement and loadouts against hidden but scripted alien positions.

Optimization · Pure Optimization
A hybrid real-time and tactical action RPG in a digital city.
Code Name S.T.E.A.M. leans Optimization (Pure Optimization); Transistor leans Optimization (Pure Optimization).
Transistor leans a little harder on execution, though the gap is small.
Code Name S.T.E.A.M.
Manual third-person aiming adds a real but small hands layer
Transistor
Real-time and planned hybrid combat.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Code Name S.T.E.A.M.
Alien AI runs fixed behaviours, never modelling you
Transistor
Process enemies follow scripts.
Code Name S.T.E.A.M. leans a little harder on variance, though the gap is small.
Code Name S.T.E.A.M.
Unseen enemy positions and overwatch threats are hidden information
Transistor
Limited randomness.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Code Name S.T.E.A.M.
Steam budgeting, loadouts and positioning are the solvable core
Transistor
Function loadouts have deep optimization.
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.