head to head
Neither is simply harder - they are hard in different places. Counter-Strike: Global Offensive demands more execution; The Isle demands more variance.

Execution · Competitive PvP
Definitive competitive tactical FPS balancing aim mastery with team strategy.

Reads · Competitive PvP
Open-world survival sandbox where every dinosaur stalking you is another player.
Counter-Strike: Global Offensive leans Execution (Competitive PvP); The Isle leans Reads (Competitive PvP).
Counter-Strike: Global Offensive leans clearly harder on execution.
Counter-Strike: Global Offensive
Spray control and flick precision at the top
The Isle
Stamina management and pounce timing in chases
Counter-Strike: Global Offensive leans a little harder on reads, though the gap is small.
Counter-Strike: Global Offensive
Anti-stratting and mid-round adaptation
The Isle
Human-controlled dinosaurs ambush and bait
The Isle leans clearly harder on variance.
Counter-Strike: Global Offensive
Information hidden until contact
The Isle
Open server world hides who is nearby
Counter-Strike: Global Offensive leans a little harder on optimization, though the gap is small.
Counter-Strike: Global Offensive
Utility lineups, economy, and default strats
The Isle
Growth stages, diets, and territory knowledge
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.