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.

Execution · Competitive PvP
Open-zone gunfights where aim, ambush prediction and gear economy all matter.

Execution · Competitive PvP
Turn-based artillery comedy where teams of worms annihilate each other.
Stalcraft: X leans Execution (Competitive PvP); Worms 2 leans Execution (Competitive PvP).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Stalcraft: X
Gunfights against other stalkers reward raw aim and movement
Worms 2
Ninja rope mastery and pixel-perfect grenade arcs win games.
Worms 2 leans a little harder on reads, though the gap is small.
Stalcraft: X
Open-zone PvP means predicting ambushes from adapting humans
Worms 2
Human opponents bait positions and hide intentions.
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Stalcraft: X
Anomalies, artifact spawns and who you meet inject randomness
Worms 2
Wind, crate drops and terrain randomness swing turns.
Same score on optimization - which means the number cannot separate them. The difference is in what each one asks of you.
Stalcraft: X
Gear economy, artifact builds and route knowledge compound
Worms 2
Weapon economy and positioning theory are studyable.
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.