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

Optimization · Practiced Mastery
A cinematic puzzle platformer about sneaking a hapless Mudokon past guards while rescuing his coworkers.

Optimization · Practiced Mastery
Peak PS2-era Ratchet, blending arsenal progression with polished combat arenas.
Oddworld: Abe's Oddysee leans Optimization (Practiced Mastery); Ratchet & Clank: Up Your Arsenal 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.
Oddworld: Abe's Oddysee
Precise platforming and stealth timing kill instantly
Ratchet & Clank: Up Your Arsenal
Faster combat demanding strafing and aim precision.
Ratchet & Clank: Up Your Arsenal leans a little harder on reads, though the gap is small.
Oddworld: Abe's Oddysee
Sligs patrol on fixed scripts
Ratchet & Clank: Up Your Arsenal
Campaign is scripted; legacy multiplayer added a thin PvP layer.
Ratchet & Clank: Up Your Arsenal leans a little harder on variance, though the gap is small.
Oddworld: Abe's Oddysee
Deterministic screens, no randomness
Ratchet & Clank: Up Your Arsenal
Unknown encounters only on first playthrough.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Oddworld: Abe's Oddysee
Mudokon rescue routes and puzzle solutions are solvable
Ratchet & Clank: Up Your Arsenal
Weapon XP, bolt economy, and route mastery decide everything.
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.