Alt - highlights bags
A - attack

can make an offering at Idols of ... pillars - they are repeatable
max potion cont. 255 !!

can leave stuff on ground, it will stay there forever
same for gear from dead bandits - you can pick them up and sell them or just leave them

leadership skill at level 5 -> 6 people party - this is the max
you get leadership scrolls, so don't spend many points on this
likely all skills max at 10 - tested many, but not all
power of ... skills give 350% damage at level 10

Use training skill on main char, so that other chars get shared XP.
Then try to kill enemies with main char, especially keepers.

Making potions and blacksmith skills can be very useful for augmenting items.
Healing skill combined with plants that heal the whole party at once are also very useful.

I have found a very powerful trick / bug. If you give an item to a party member and then use a shovel on a him/her, he/she will have another piece of that item!!! Selling these is buggy, so just leave them on the floor or if you really want to sell them, sell every piece.
BUT you get tons of items, can make very powerful potions, so you probably don't need this...

Max STA and STR needed is 95. (Best armor, best weapon.)
Best bow is probably AG 84.
Power of ... skill level 10 requires INT 60.
Potion Mixing, Healing, Trading level 10 requires INT 50.

Generally swords do lot less damage for the same amount of STR points than axes using STA.
Also, you need STA for better armor, so...

Go with caravans for loot and XP.
Remember to go the same route normally as well.

Use treasure scrolls, they give you a lot of good stuff.
(Below I have listed the things I have found next to the map name)

The following is the path I went in the game with some other info.
May be a SPOILER!

Miroslav 3x
healing scroll
STR potion
blacksmith scroll
IoP - 1000g -> 100 XP, +1 Protection from fire

Forest near M. 2x
Riverside 2x
archer bet at the beginning
can join hunters
way to Lower Camp, Freestead

Remote Apiary 3x
IoP - 1000g -> 100 XP, +1 Protection from chaos
1 STA -> 500g, +1 Protection from chaos
warriors can be hired as village guard - maybe for party too

Lower Camp 2x
this was my stash, at the portal
Olaf Blood Axe for hire
Ratibor is here
way to Forest Camp

Magus near Lower Camp 2x (shield, Leadership scroll)
IoP - 1000g -> 100 XP, +1 Protection from chaos
1 STA -> 150 XP, 500g, +1 Protection from chaos

Freestead 3x (AG potion, BS scroll)
IoP - 1000g -> 100 XP, +1 Protection from fire
way to Riverside, Green Dale
Forest Road 3x (shield, STA pot, STR ring, helm)
IoV - 1 AG -> 200 XP, 500g, +1 melee prot.
back to Riverside

Green Dale 3x (AG bracelet, th + leader scrolls)
Nabwick 3x (xbow, th + leader scrolls, shield)
lots of plants
way tt Blackwood, Byzantine Outpost
IoT - 1 STR -> 200 XP, 250g, +1 poison prot.
1000g -> 100 XP, +1 Protection from poison
Healer Olga can join

Foothyll 3x (BS scroll, elixir of life, bone staff)
keeper summoning idol
Byzantine Outpost
closed at first

from Nabwick to Blackwood
Hunting Grounds 4x (xbow, lockpick, STA potion, STA necklace)
locked chest - th scroll, chalice from Blackwood
Blackwood 2x (chaos ring, elixir of life)
leader scroll at merch
trading scroll at merch
boiling acid rec., STA potion at healer
Library
BS skill +1
locked chest with 50k gold debt paper

Road to Forest Camp 2x (poison staff, fem blossom (AG potion))
random druid gives STR potion
IoO - 1 STA -> 150 XP, 500g, +1 chaos prot.
1000g -> 100 XP, +1 Protection from chaos

Forest Camp 2x (sword w/ steel block, helm w/ leadership)
Harald for hire
Skald may be able to join for other chars
healer may be hired
after lighting the fire, free heal, free repair
Ingvi hunters clan - need 2 carriers

after getting into the Blackwood library
Byzantine Outpost 3x (nice sword, STR necklace, mammoth tusk powder, hop)
nice poison dagger because story
can choose to kill leader for the bandits or not
Alexey can join

Undermountain Cave 0x

BO -> Wulftam
Magus near Wulftam 3x (armor, hippo and treasure scrolls, fire balm and STR potion)
way to Oakwood, Wulftam

Wulftam 3x (STR potion, STR and AG necklace, shield)
BS apprentice
way to Hillborough
Mikula hunter clan - need 3 silver arrows

Oakwood 3x (hop, STR + chaos bracelet, fire sheld, fire staff)
IoP, IoV
Magus, who joins because quest
BS, healer apprentice
went with caravan

Byridge Caravan 0x
Magus near Byridge 4x (berserk + STR necklace, sword, elixir of life, trading scroll)
moon werewolf
keeper summoning idol
3 men looking for hire
lots of plants

Byridge 4x (horned helm, 2h sword !!!, fern, STA bracelet, BS scroll, armor)
IoP
just needs a captain - needed for a quest too!!

Wulftam to Hillborough
Roaring Brook 3x (STA potion, healing scroll, tusk staff (chaos, armor break))
Hillborough 4x (AG potion, ring STR + healing + prot fire, BS scroll, trading scroll)
healer apprentice
many merchants
warehouse at portal 2 acid potions
warehouse N healing plants
warehouse SW bows, plants
way to Gnatmire, Seavill

caravan to Gnatmire
Gold Mine 1x (helm)
a quest from Hillb. gives an acid fog staff!!
Nikita, new join, needed for q.

Gnatmire 3x (healing + th scroll, STA 90 armor 170 armor, trading scroll + STA +10 poison prot +10 bracelet)
no healer, just a few potions on the ground
no blacksmith
q.: get healer + BS

Magus near Hydvale 3x (trading + leadership scroll, fire acid + poisonous balm, armor)
people for hire
after a q. Magus has a shop with nice items

Hydvale 3x (armor, trading scroll + STA STR necklace, BS + treasure h. scroll)
leader of the hunters clan
Triglau's Rage for 5000g
if join, +1 ranged weapons, +1 power of nature
IoP, IoV, IoT

Flying Isle ruins 0x
locked for now
needs bow to shoot lever
tons of monsters and XP, loot
last part needs protection from chaos (level 12 skeleton mages...)
BOSS -> 2000 XP, Champion Sword (STR: 95), Ruler's soldier shield (STR: 95)

from Hillborough to Seavill
Crossroads 4x (crossbow, 3x silver arrows!!!, arrows, elixir of life, healing scroll, leadership scroll)
Wishing Well 3x (chaos staff, STR + fire damage ring, BS scroll)
not sure how or what to throw in - quest for merchant boss

Seavill 3x (treasure scroll, ring, hop, fern blossom, hornet swarm staff)
IoV, IoP, keeper summoning idol
keeper gives 1000 XP

Below potion list is based on:
https://steamcommunity.com/sharedfiles/filedetails/?id=751473758

Recipe List:

NOTE: Potions give +15 damage / protection using 240 or more concentration.

POTIONS

1. Healing Balm Recipe
Requirements: 1 empty flask and 1 White Root
Heals character.

2. Oil Recipe
Requirements 1 empty flask and 1 Earthnut
Can't drink. Can't be used on weapon, just arrows.
Adds fire damage.

3. Poison Recipe
Requirements: 1 empty flask and 1 poisonous stinger
NOTE: Any poisonous stinger can be used to make this potion
Adds poison damage.

SOLUTIONS
These damage the character. Don't drink.
They can be turned into a Decoction using a Burner, except Elderberry.
Decoctions also damage the character. Don't drink.

1. Elderberry Solution Recipe
Requirements: 1 empty flask and 1 Elderberry
(No Elderberry Decoction)

2. Nettle Solution Recipe
Requirements: 1 empty flask and 1 Nettle Leaves

3. Oak Bark Solution Recipe
Requirements: 1 empty flask and 1 Oak Bark

4. Spider Legs Powder Solution Recipe
Requirements: 1 empty flask and 1 Spider Legs Powder

5. Spurge Flax Solution Recipe
Requirements: 1 empty flask and 1 Spurge Flax

6. Tutsan Solution Recipe
Requirements: 1 empty flask and 1 Tutsan blossom

7. Viper fangs powder solution
Requirements: 1 empty flask and 1 Viper Fangs Powder

COMPLEX POTIONS

1. Antidote Recipe
Requirements: 1 Healing Balm and 1 Poison

2. Boiling Acid Recipe
Requirements: 1 Nettle Decoction and 1 Elderberry Solution
Adds damage

3. Fire Acid Recipe
Requirements: 1 Tar and 1 Spider Powder Decoction
Adds fire damage

4. Fire Balm Recipe
Requirements: 1 Elderberry Solution and 1 Spider Leg Powder Solution
NOTE: Even if the page says frog legs, it is a typo in the game!
Adds protection from fire

5. Holy Water Recipe
Requirements: 1 Honey and 1 Tutsan Decoction
Adds protection from the power of chaos

6. Poisonous Balm Recipe
Requirements: 1 Tar and 1 Spurge Flax Decoction
Adds protection from the power of poison

7. Stone Balm Recipe
Requirements: 1 Oak Bark Decoction and 1 Malachite
Adds armor (protection from melee)

RARE POTIONS

1. Snake Acid Recipe
Requirements: 1 Poison and 1 Viper Fang
Adds poison damage

2. Philosopher's Elixir Recipe
Requirements: 1 Gold Nugget and 1 Poison
Turns items into gold.
NOTE: If you are willing to carry stuff back to a village and sell it, you get a lot more gold.
Check shop prices at multiple locations before selling.

3. Elixir of Stamina Recipe
Requiremetns: 1 empty flask and 1 Mammoth Tusk Powder
+5 STA

4. Elixir of Strength Recipe
Requirements: 1 empty flask and 1 Hop Leaf
+5 STR

5. Elixir of Agility Recipe
Requirements: 1 empty flask and 1 Fern Blossom
+5 AG

*SPECIAL ALCHEMY RECIPE:

Elixix of Life Recipe
Requirements: 1 Holy Water and 1 Paris Herb
Type: Specialized quest potion
NOTE: You can use this to revive dead party members or broken equipment. To fix broken equipment, put the broken piece of equipment into the potion spot on the inventory screen and use the potion on it. This is required for a specific main quest also.