head to head
Escape Doodland asks more than Half-Life 2, and the gap is execution.

Execution · Pure Mechanics
A reflex runner-platformer of fleeing a monster through hazard-filled levels.

Execution · Pure Mechanics
Landmark FPS built on physics puzzles and tight gunplay.
Escape Doodland leans Execution (Pure Mechanics); Half-Life 2 leans Execution (Pure Mechanics).
Escape Doodland leans clearly harder on execution.
Escape Doodland
Reflex timing while fleeing a monster is the core
Half-Life 2
Gravity gun and shooting demand precision.
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Escape Doodland
Monster chase is scripted, not adaptive
Half-Life 2
Combine AI scripted, non-adaptive.
Escape Doodland leans clearly harder on variance.
Escape Doodland
Obstacle layouts add some randomness
Half-Life 2
Almost no randomness.
Half-Life 2 leans a little harder on optimization, though the gap is small.
Escape Doodland
Learning level hazards improves survival slightly
Half-Life 2
Linear progression with no builds.
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.