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

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

Optimization · Pure Optimization
A tower defense game about engineering optimal gem combinations against scripted waves.
Dawn of Discovery leans Optimization (Pure Optimization); GemCraft 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
GemCraft
Placing gems and towers has no twitch demand
Dawn of Discovery leans a little harder on reads, though the gap is small.
Dawn of Discovery
AI traders and rivals follow predictable scripts
GemCraft
Monster waves are scripted, never adapting to player
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
GemCraft
Wave composition is fixed once a level is known
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
GemCraft
Combining gems for optimal tower output is 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.