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

Optimization · Pure Optimization
Turn-based infiltration puzzles with fully solvable deterministic solutions.

Optimization · Pure Optimization
Turn-based board-puzzle distillation of Tomb Raider's traps and tombs.
Deus Ex GO leans Optimization (Pure Optimization); Lara Croft Go leans Optimization (Pure Optimization).
Lara Croft Go leans a little harder on execution, though the gap is small.
Deus Ex GO
Turn-based taps, no dexterity at all
Lara Croft Go
Turn-based taps, zero dexterity
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Deus Ex GO
Guards move by fixed deterministic rules
Lara Croft Go
Hazards move on fixed rules
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Deus Ex GO
Puzzle states are fully visible from the start
Lara Croft Go
Everything visible on the board
Lara Croft Go leans a little harder on optimization, though the gap is small.
Deus Ex GO
Each board is a literally solvable movement puzzle
Lara Croft Go
Each level is a solvable movement puzzle
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.