head to head
Hearthstone asks more than Buckshot Roulette, and the gap is reads.

Variance · Systems & Chaos
A tense one-on-one Russian roulette duel with a shotgun.

Variance · Grand Arena
A digital card game balancing opponent reads against draw variance.
Buckshot Roulette leans Variance (Systems & Chaos); Hearthstone leans Variance (Grand Arena).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Buckshot Roulette
Trivial click inputs.
Hearthstone
Clicks only, no mechanical skill
Hearthstone leans clearly harder on reads.
Buckshot Roulette
Dealer has minor adaptive bluff tells.
Hearthstone
Human opponents bluff and adapt mid-match
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Buckshot Roulette
Shell order is hidden and random.
Hearthstone
Draw RNG and discover effects swing games
Hearthstone leans a little harder on optimization, though the gap is small.
Buckshot Roulette
Probability tracking and item use reward optimization.
Hearthstone
Deckbuilding, mulligans, and mana curves matter
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.