Upgrades

Upgrades

Whenever you level up, you are offered the choice of 4 different Upgrades that increases one of your Primary Stats. Upgrades come in 4 Tiers, with higher tiers giving more stats. You can read about the chances of each rarity below.

Upgrades are a great way to get a particular stat that you are looking for, as you can reroll the offered options multiple times and have a good chance of finding exactly what you are looking for.

Overview

This table shows just the basic stats. See below for full details.

Stat	I	II	III	IV
Max HP	3	6	9	12
HP Regeneration	2	3	4	5
Life Steal	1	2	3	4
Damage	5	8	12	16
Melee Damage	2	4	6	8
Ranged Damage	1	2	3	4
Elemental Damage	1	2	3	4
Attack Speed	5	10	15	20
Crit Chance	3	5	7	9
Engineering	2	3	4	5
Range	15	30	45	60
Armor	1	2	3	4
Dodge	3	6	9	12
Speed	3	6	9	12
Luck	5	10	15	20
Harvesting	5	8	10	12

Upgrades List

Stat	Tier I	Tier II	Tier III	Tier IV
Max HP	Heart Upgrade +3 Max HP	Heart II Upgrade +6 Max HP	Heart III Upgrade +9 Max HP	Heart IV Upgrade +12 Max HP
HP Regeneration	Lungs Upgrade +2 HP Regeneration	Lungs II Upgrade +3 HP Regeneration	Lungs III Upgrade +4 HP Regeneration	Lungs IV Upgrade +5 HP Regeneration
Life Steal	Teeth Upgrade +1 Life Steal	Teeth II Upgrade +2 Life Steal	Teeth III Upgrade +3 Life Steal	Teeth IV Upgrade +4 Life Steal
Damage	Triceps Upgrade +5 Damage	Triceps II Upgrade +8 Damage	Triceps III Upgrade +12 Damage	Triceps IV Upgrade +16 Damage
Melee Damage	Forearms Upgrade +2 Melee Damage	Forearms II Upgrade +4 Melee Damage	Forearms III Upgrade +6 Melee Damage	Forearms IV Upgrade +8 Melee Damage
Ranged Damage	Shoulders Upgrade +1 Ranged Damage	Shoulders II Upgrade +2 Ranged Damage	Shoulders III Upgrade +3 Ranged Damage	Shoulders IV Upgrade +4 Ranged Damage
Elemental Damage	Brain Upgrade +1 Elemental Damage	Brain II Upgrade +2 Elemental Damage	Brain III Upgrade +3 Elemental Damage	Brain IV Upgrade +4 Elemental Damage
Attack Speed	Reflexes Upgrade +5 Attack Speed	Reflexes II Upgrade +10 Attack Speed	Reflexes III Upgrade +15 Attack Speed	Reflexes IV Upgrade +20 Attack Speed
Crit Chance	Fingers Upgrade +3 Crit Chance	Fingers II Upgrade +5 Crit Chance	Fingers III Upgrade +7 Crit Chance	Fingers IV Upgrade +9 Crit Chance
Engineering	Skull Upgrade +2 Engineering	Skull II Upgrade +3 Engineering	Skull III Upgrade +4 Engineering	Skull IV Upgrade +5 Engineering
Range	Eyes Upgrade +15 Range	Eyes II Upgrade +30 Range	Eyes III Upgrade +45 Range	Eyes IV Upgrade +60 Range
Armor	Chest Upgrade +1 Armor	Chest II Upgrade +2 Armor	Chest III Upgrade +3 Armor	Chest IV Upgrade +4 Armor
Dodge	Back Upgrade +3 Dodge	Back II Upgrade +6 Dodge	Back III Upgrade +9 Dodge	Back IV Upgrade +12 Dodge
Speed	Legs Upgrade +3 Speed	Legs II Upgrade +6 Speed	Legs III Upgrade +9 Speed	Legs IV Upgrade +12 Speed
Luck	Nose Upgrade +5 Luck	Nose II Upgrade +10 Luck	Nose III Upgrade +15 Luck	Nose IV Upgrade +20 Luck
Harvesting	Hands Upgrade +5 Harvesting	Hands II Upgrade +8 Harvesting	Hands III Upgrade +10 Harvesting	Hands IV Upgrade +12 Harvesting

Rarity of Upgrades

Luck affects the rarity of upgrades. However some levels have 100% rarity rates:

• Level 1: 100% Tier 1
• Level 5: 100% Tier 2
• Level 10: 100% Tier 3
• Level 15: 100% Tier 3
• Level 20: 100% Tier 3
• Level 25: 100% Tier 4
• Every 5th level after: 100% Tier 4

Player level affects the upgrade rarities

	Min Level	Base Chance	+Chance per Level	Max Chance
Tier 1	1	100%	0%	100%
Tier 2	1	0%	6%	60%
Tier 3	3	0%	2%	25%
Tier 4	7	0%	0.23%	8%

Calculation for chances are done by:

= ((Chance per Level * (Current Level - Min Level)) + Base Chance) * (1+Luck/100) 

Chance per level starts adding chance after the Min Level.

This value cannot exceed Max Chance.

Rarities with 0 Luck

Level	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19
Tier 1	100%	94%	88%	80%	72%	64%	56%	47.77%	39.54%	31.31%	23.08%	20.85%	18.62%	16.39%	14.16%	12.93%	12.7%	12.47%	12.24%
Tier 2	0%	6%	12%	18%	24%	30%	36%	42%	48%	52%	60%	60%	60%	60%	60%	60%	60%	60%	60%
Tier 3	0%	0%	0%	2%	4%	6%	8%	10%	12%	14%	16%	18%	20%	22%	24%	25%	25%	25%	25%
Tier 4	0%	0%	0%	0%	0%	0%	0%	0.23%	0.46%	0.69%	0.92%	1.15%	1.38%	1.61%	1.84%	2.07%	2.3%	2.53%	2.76%

Luck increases these chances by x%, but that still cannot exceed the Max Chance.

For example:

• In level 10 with 0 Luck, the chance for Tier 3 is 2*7 = 14% -- extrapolated: ( 2% * ( 10 - 3 ) + 0% ) * ( 100% + 0% )
• In level 10 with 50 Luck, it increases by 50%, 2*10.5 = 21% -- extrapolated: ( 2% * ( 10 - 3 ) + 0% ) * ( 100% + 50% )
• In level 10 with 100 Luck, it increases by 100%, 2*14 = 28% -- extrapolated: ( 2% * ( 10 - 3 ) + 0% ) * ( 100% + 100% )
  • However, Max Chance for Tier 3 is 25%, so the chance for Tier 3 ends up as 25%.

Rarities with 50 Luck

Increases chances by 50% (*1.5), up to the Max Chance.

Level	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19
Tier 1	100%	91%	82%	70%	58%	46%	34%	24.66%	21.31%	17.96%	14.62%	13.28%	12.93%	12.59%	12.24%	11.89%	11.55%	11.21%	10.86%
Tier 2	0%	9%	18%	27%	36%	45%	54%	60%	60%	60%	60%	60%	60%	60%	60%	60%	60%	60%	60%
Tier 3	0%	0%	0%	3%	6%	9%	12%	15%	18%	21%	24%	25%	25%	25%	25%	25%	25%	25%	25%
Tier 4	0%	0%	0%	0%	0%	0%	0%	0.35%	0.69%	1.04%	1.38%	1.73%	2.07%	2.42%	2.76%	3.11%	3.45%	3.8%	4.14%

Rarities with 100 Luck

Increases chances by 100% (*2), up to the Max Chance.

Level	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19
Tier 1	100%	88%	76%	60%	44%	28%	24%	19.54%	15.08%	13.62%	13.16%	12.7%	12.24%	11.78%	11.32%	10.86%	10.4%	9.94%	9.48%
Tier 2	0%	12%	24%	36%	48%	60%	60%	60%	60%	60%	60%	60%	60%	60%	60%	60%	60%	60%	60%
Tier 3	0%	0%	0%	4%	8%	12%	16%	20%	24%	25%	25%	25%	25%	25%	25%	25%	25%	25%	25%
Tier 4	0%	0%	0%	0%	0%	0%	0%	0.46%	0.92%	1.38%	1.84%	2.3%	2.76%	3.22%	3.68%	4.14%	4.6%	5.06%	5.52%

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