head to head
The Ship: Murder Party asks more than Tabletop Simulator, and the gap is reads.

Reads · Bluff & Deduction
A physics sandbox whose actual skill test is whatever board game you load into it.

Reads · Bluff & Deduction
Cruise passengers each hunt an assigned target while acting natural enough to avoid their own assassin.
Tabletop Simulator leans Reads (Bluff & Deduction); The Ship: Murder Party leans Reads (Bluff & Deduction).
The Ship: Murder Party leans clearly harder on execution.
Tabletop Simulator
Fiddly physics manipulation, never a skill ceiling
The Ship: Murder Party
Landing kills and fleeing guards needs some dexterity.
The Ship: Murder Party leans clearly harder on reads.
Tabletop Simulator
Depends entirely on the tabletop game played with humans
The Ship: Murder Party
Spotting which passenger is your human hunter is psychological.
The Ship: Murder Party leans clearly harder on variance.
Tabletop Simulator
Dice and shuffled decks supply whatever randomness the game has
The Ship: Murder Party
Unknown quarry assignments and weapon luck cloud each round.
The Ship: Murder Party leans a little harder on optimization, though the gap is small.
Tabletop Simulator
Strategy lives in the hosted game, not the simulator
The Ship: Murder Party
Needs management and guard patterns are learnable systems.
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.