Critical Hit in Dota2

Today I’ll show you the test on critical hit in Dota2 (take the Skeleton King as an example).

1. With 5 Hearts of Tarrasque and 1 Buriza (25%, 2.5x), Skeleton King’s crit only upgrades 1 level (15%, 1.25x) to deal with Roshan and mobs.

2 crit occur at the same time: no

Successive crit: very few, can be ignored (if appears, it can kill the monsters within a second)

Crit rate: around 35% [≈ 15%+(1-15%)*25%=36.25%]

Crit occurrence rules: hardly any. There’s no connection between crit occurrence and attack occurrence.

2. With 2 Hearts of Tarrasque and 4 Burizas, Skeleton King’s crit only upgrades 1 level to deal with Roshan and mobs

2 crit occur at the same time: no

Successive crit: all the time. If the above method is correct, 4 Burizas plus 15% Crit itself, Skeleton King’s crit rate is more than 100%. Each of his hit is critical hit.

Off-topic: When I equipped with 4 Burizas, Skeleton King said: "i feel retarded for this."

3. With 2 Hearts of Tarrasque and 2 Burizas, Skeleton King’s crit only upgrades 1 level to deal with Roshan and mobs

2 crit occur at the same time: no

Successive crit: frequent. I saw successive 3 times crit many times and a couple of successive 4 times crit.

Crit rate: around 65%. According to the above formula, the result is a little bit more than 64%. That means my formula is almost correct.

Crit occurrence rules: none. Even with 65% critical hit rate, I still have situations like successive 5 hits with no crit or successive 4 critical hits.

 Summary:

1. The displayed crit damage is the one without damage offset by armor (so even with 2x damage, there will still be odd critical damage) with a red lighting sign beside it.

2. The critical system in Dota2 applies advanced superposition arithmetic. This avoids some situations in war3 like only counting the last crit damage when 2 crit occur at the same time.

3. It avoids damage wasting when more than 2 crit equip appear.

4.We can see that the critical hit in Dota2 is random. Thus it causes some crazy situations like successive hits with no crit (under high crit rate).

5. If Buriza occurs critical hit, heroes who have crit animations themselves like the Skeleton King/ Juggernaut will have red light on their sword. However, there’s no crit sound effect. If the heroes themselves occur crit, there will be both red light and a beep sound.