head to head
Neither is harder. They score identically on all four axes, so the difference between them is in kind, not degree.

Optimization · Pure Optimization
A physics puzzler about solving stable stacking orders for oddly shaped blocks.

Optimization · Pure Optimization
Procedural space exploration sandbox with crafting depth.
Art of Balance leans Optimization (Pure Optimization); No Man's Sky leans Optimization (Pure Optimization).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Art of Balance
Steady placement matters but no twitch pressure
No Man's Sky
Light shooter and flight inputs
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Art of Balance
Solo physics puzzle, no opponent
No Man's Sky
Mostly solo, sparse PvP
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Art of Balance
Physics wobble adds slight unpredictability
No Man's Sky
Procedural planets and loot
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Art of Balance
Solving the stable stacking order is the core puzzle
No Man's Sky
Base, freighter, expedition progression
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.