head to head
Grand Theft Auto V asks more than Cryostasis, and the gap is reads.

Optimization · Practiced Mastery
Managing warmth as a health economy through scripted horror corridors.

Execution · Practiced Mastery
Sandbox crime playground spanning shooting, driving, and a persistent online economy.
Cryostasis leans Optimization (Practiced Mastery); Grand Theft Auto V leans Execution (Practiced Mastery).
Grand Theft Auto V leans a little harder on execution, though the gap is small.
Cryostasis
Sluggish deliberate combat needs timing, not twitch
Grand Theft Auto V
Driving and shooting demand decent inputs.
Grand Theft Auto V leans clearly harder on reads.
Cryostasis
Frozen horrors follow scripted patterns
Grand Theft Auto V
Online PvP exists but mostly gear/positioning, not modeling.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Cryostasis
Scares and layouts are authored, unknown only once
Grand Theft Auto V
Some mission and lobby randomness.
Cryostasis leans a little harder on optimization, though the gap is small.
Cryostasis
Heat management and flashback puzzles are the system
Grand Theft Auto V
Heists, money loops, builds learnable.
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.