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

Optimization · Pure Optimization
Growing a floating base by solving resource chains and research order against scripted ocean threats.

Optimization · Systems & Chaos
The classic WWII Pacific submarine simulator of stalking Japanese convoys and plotting torpedo attacks.
Raft leans Optimization (Pure Optimization); Silent Service leans Optimization (Systems & Chaos).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Raft
Shark hook-attacks require minimal timing
Silent Service
Periscope aiming and timing matter, but pace is slow
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Raft
Shark and seagull AI are scripted with no player modelling
Silent Service
Escort AI is scripted; no adaptive opponent
Silent Service leans a little harder on variance, though the gap is small.
Raft
Island loot tables and resource drift introduce randomness
Silent Service
Convoy composition and detection rolls are hidden randomness
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Raft
Raft expansion, food chains, and research order are solvable systems
Silent Service
Torpedo solutions and approach plotting are solvable geometry
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.