head to head
Agar.io asks more than Oh...Sir!! The Insult Simulator, and the gap is execution.

Reads · Competitive PvP
A browser arena where your cell eats smaller players and flees bigger ones.

Reads · Bluff & Deduction
Assembling insults from a shared random word pool while denying your opponent's combos.
Agar.io leans Reads (Competitive PvP); Oh...Sir!! The Insult Simulator leans Reads (Bluff & Deduction).
Agar.io leans clearly harder on execution.
Agar.io
Mouse steering and split timing
Oh...Sir!! The Insult Simulator
Picking phrases under a timer barely tests hands
Agar.io leans a little harder on reads, though the gap is small.
Agar.io
Baiting and predicting human blobs decides fights
Oh...Sir!! The Insult Simulator
Versus humans, denying the words your opponent wants matters
Oh...Sir!! The Insult Simulator leans a little harder on variance, though the gap is small.
Agar.io
Spawn locations and lobby makeup random
Oh...Sir!! The Insult Simulator
The shared word pool deals random sentence fragments
Oh...Sir!! The Insult Simulator leans a little harder on optimization, though the gap is small.
Agar.io
Split-merge math is shallow but real
Oh...Sir!! The Insult Simulator
Combo and sore-spot scoring rules are learnable math
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.