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
An economic engine puzzle about balancing production chains across island settlements.

Optimization · Pure Optimization
A tower defense testing optimal tower combinations against scripted waves.
Dawn of Discovery leans Optimization (Pure Optimization); Element TD 2 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.
Dawn of Discovery
Pausable building keeps hands out of the equation
Element TD 2
Light micro on tower placement timing, minimal twitch
Same score on reads - which means the number cannot separate them. The difference is in what each one asks of you.
Dawn of Discovery
AI traders and rivals follow predictable scripts
Element TD 2
Scripted enemy waves, no adaptive opponent
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Dawn of Discovery
Island fertilities and resources are unknown until scouted
Element TD 2
Wave composition known, little hidden information
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Dawn of Discovery
Production chains and population-tier economics are the entire game
Element TD 2
Optimal tower combos and placement IS the 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.