Experience

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Experience allows heroes to level up, which makes them stronger and allows them to learn new abilities. Experience is earned by being within a 1300 range radius of a dying enemy unit. It takes increasingly more experience to level up as a hero's level progresses. Units can be denied by other allied units to reduce the experience given from dying.

Leveling

Each hero starts the match at level 1, with one ability point to spend. A hero levels by acquiring a certain amount of experience. When a hero levels, its attributes get increased according to that hero's individual attribute bonuses, and it gains an ability point. The ability point can be spent on an ability which has not been maxed out, or on a Talent. Ability points do not need to be spent immediately, a hero can level up multiple times while saving the ability points.

Experience required for each level.

The amount of experience required to level up is generally equal to the upcoming hero level * 100. For example, to increase a hero's level from 1 to 2 a hero requires 240 experience points, while leveling up from 24 to 25 requires 2695 experience points. There are a few exceptions for some levels in the 6–23 range to allow mid-game heroes to peak slightly earlier.

Hero level	Total experience required to reach level	Experience required for next level
1	0	240
2	240	360
3	600	480
4	1080	600
5	1680	620
6	2300	640
7	2940	660
8	3600	680
9	4280	800
10	5080	820
11	5900	840
12	6740	900
13	7640	1225
14	8865	1250
15	10115	1275
16	11390	1300
17	12690	1325
18	14015	1400
19	15415	1490
20	16905	1500
21	18405	1750
22	20155	2000
23	22155	2250
24	24405	2500
25	26905	-

Acquiring experience

When an enemy unit dies, experience is granted and divided among all allied heroes in a 1300 range.

• Experience is granted by almost all units: heroes, creeps, summons and wards. Buildings do not grant experience.
• Denying a hero (for instance, by committing suicide) grants no experience (nor gold) to the enemy. This also applies when killed by neutrals.
• More generally, denying a player-controlled unit (like a summon or a dominated unit) grants no experience to the enemy.
• Denying a non-player-controlled unit (lane creeps) grants 70% of its experience bounty to the enemy, and the remaining 30% to the denying team.
• Non-player-controlled units killed by neutrals grant 70% of their experience to the enemy team, and 0% to their allied team.
• Neutrals' deaths grant experience to any nearby hero, no matter the team that gets the last-hit.
• A hero cannot earn experience while dead.
• Hero kills award experience to the killer at any range (no matter how far away they are).
  • Any kills made by summoned units like Treants or Spirit Bear reward experience to their owner at any range.
• Heroes take their share of experience even after level 25, even though they cannot use it.
• Each Meepo clone counts as a hero for the purposes of gaining and dividing experience.
• Experience (and gold) are awarded independently of the assist counter on the scoreboard, which only counts if a hero dealt damage, and ignores proximity to the dying hero. This means a hero only gets assist gold and experience when within range of a dying enemy hero, even when it did not contribute to the kill in any way.

Abilities

Some items award a hero with experience, namely:

• Bounty Rune - Bounty
  
  Experience Gain: 50 + 5 per minute
  
• Hand of Midas - Transmute
  
  Experience Gain: 185% of the creep's experience bounty
  
• Tome of Knowledge - Enlighten
  
  Experience Gain: 500 (+135 per each Tome consumed by allies)
  

Hero kills

When an enemy hero is killed, allied heroes within range receive an experience reward, split up into two parts: killing experience and assist experience. Killing experience is based on the level of the killed hero, and assist experience is based on the experience difference between the teams.

Kill experience

When an enemy hero dies, an experience reward is divided equally among allied heroes in range. The killer receives the reward even if he is not in range. The formula awards total experience as follows:

Killed hero's level	Experience awarded
1	100
2	120
3	140
4	160
5	180
6	200
7	220
8	330
9	440
10	550
11	660
12	770
13	880
14	990
15	1100
16	1210
17	1320
18	1430
19	1540
20	1650
21	1760
22	1870
23	1980
24	2090
25	2200

If 'x' is the level of the killed hero, the amount of experience gained (f(x)) is:

For levels 1–5: f(x) = 20(x + 4); f(1) = 100

For levels 6 and further: f(x) = f(x - 1) + 100; f(5) = 180

Or it can combine them into one formula: f(x) = (20x + 80) H(5.5 - x) + (100x - 320) H(x - 5.5)

Assist experience

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When an enemy hero dies, allied heroes within 1300 range receive an experience reward. The formula (for each hero) is as follows:

Assisting heroes	Experience awarded
1 Hero	(20 × Dying Hero's Level) + (0.138 × Dying Hero's XP x XP Difference)
2 Heroes	(15 × Dying Hero's Level) + (0.138 × Dying Hero's XP x XP Difference)
3 Heroes	(10 × Dying Hero's Level) + (0.12 × Dying Hero's XP x XP Difference)
4 Heroes	(7 × Dying Hero's Level) + (0.09 × Dying Hero's XP x XP Difference)
5 Heroes	(5 × Dying Hero's Level) + (0.072 × Dying Hero's XP x XP Difference)

XP Difference is defined as (EnemyTeamXP - AlliedTeamXP) / (EnemyTeamXP + AlliedTeamXP) and has a minimum of zero.

Lane creeps

Main article: Lane creeps

Neutral creeps

Main article: Neutral creeps

Roshan

Roshan

750 + 20*min

Summons

Main article: Summons

Special

Source	Unit	Experience
Arc Warden	Tempest Double	180

Denying

Main article: Denying

Denying occurs when a hero lands a killing blow on an allied unit. Heroes can only target allied creeps if they are under 50% health, and can only target allied heroes if they are afflicted with certain debuffs. If the denied unit is not a player controlled unit, enemy heroes in 1300 range split 70% of the usual experience bounty, while the denying team within range shares the remaining 30%. If it is a player controlled unit, enemies gain no experience from it. Denying an allied unit prevents the opponents from earning gold.