Building comparison
head to head
Fallout SheltervsTotally Accurate Battle Simulator
Neither is meaningfully harder - they pose close to the same test. The widest gap is execution, and it is a single point.
Fallout Shelter
Optimization · Pure Optimization
A vault management sim about optimising dwellers, rooms, and resource loops.
Totally Accurate Battle Simulator
Optimization · Systems & Chaos
A physics sandbox where you place wobbly armies and watch ragdoll battles resolve themselves.
Fallout Shelter leans Optimization (Pure Optimization); Totally Accurate Battle Simulator leans Optimization (Systems & Chaos).
Fallout ShelterTotally Accurate Battle Simulator
Axis by axis
Execution0 vs 1
Totally Accurate Battle Simulator leans a little harder on execution, though the gap is small.
Fallout Shelter
Tapping menus only
Totally Accurate Battle Simulator
Place units then watch; no hands required
Reads0 vs 0
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout Shelter
No opponent
Totally Accurate Battle Simulator
No adaptive opponent in campaign sandbox
Variance4 vs 5
Totally Accurate Battle Simulator leans a little harder on variance, though the gap is small.
Fallout Shelter
Incident spawns and lunchbox loot rolls
Totally Accurate Battle Simulator
Wobbly physics makes identical setups resolve differently
Optimization7 vs 7
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Fallout Shelter
Dweller stats and room layout are fully solvable
Totally Accurate Battle Simulator
Unit counters and placement solve each scenario
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.