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
A deep tower defense about popping waves of balloons with monkey towers.

Optimization · Pure Optimization
A tower-defense game about building optimal mazes and tower combinations.
Bloons TD 6 leans Optimization (Pure Optimization); Super Sanctum TD leans Optimization (Pure Optimization).
Super Sanctum TD leans a little harder on execution, though the gap is small.
Bloons TD 6
Placement clicks only; no dexterity ceiling
Super Sanctum TD
Placing towers needs no twitch; abilities are light
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Bloons TD 6
Bloon waves are fixed and known
Super Sanctum TD
Enemy waves are scripted, not adaptive minds
Super Sanctum TD leans a little harder on variance, though the gap is small.
Bloons TD 6
Wave order is deterministic; tiny targeting randomness
Super Sanctum TD
Wave composition is predictable once learned
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Bloons TD 6
Tower placement, upgrades, and economy are near-solvable
Super Sanctum TD
Maze design and tower synergy are the entire game
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.