NOTE: consider this information as a spoiler for the game, since you might want to figure it out on your own

also the game is in early access so obviously this guide can quickly become outdated

each point increases max health by 0.25
(base max health is 1.0 at 0 vitality)

each point increases toxic resistance by 0.5%
(base toxic resist is 0% at 0 vitality)

each point increases max equip load by 1 kg
(base max load is 10 kg at 0 strength)

each point increases how heavy a prop you can lift by 6.0 kg
(base weight limit is 0 kg at 0 strength)

each point increases kick damage and push force by 1
(base kick damage is 40 at 0 strength)

with at least 50 strength, your kick recoil is increased to 166.67%
(you can launch yourself further with kicks)

strength determines the throw velocity multiplier
throw velocity formula in metres per second: strength / kilograms * 10
(capped at 30 metres per second)

with at least 10 strength, it determines the weapon recoil multiplier
recoil multiplier formula: 1 / √(strength * 0.1)

with at least 10 perception, you can see if a door is locked (before you try to open it)

with at least 10 perception, you can see the health of npcs, doors, etc

with at least 20 perception, you can see the armour amount of npcs, doors, etc

with at least 25 perception, you can see the toxicity value of npcs (idk if this is ever nonzero)

each point increases aim speed multiplier by 5%
(base multiplier is 50% at 0 perception, so 9 perception = 95% aim speed multiplier)
(btw "aim speed" is how fast your weapon catches up to where your crosshair is pointing when you move your camera around)

each point increases chance to defuse traps by 1%
(base chance is 0%)

decreases hacking difficulty
(less lines, less characters, less clicks needed to reach the password)

all this affects is walk speed, however walk speed in this game is currently kinda very weird and inconsistent

>75% equip load makes you significantly slower, which makes sense
however, <50% equip load can actually make you slightly slower than >50% equip load

walking sideways or backwards can be faster or slower than walking forwards depending on speed points

walking diagonally usually makes you slower until you have higher points in speed where it makes you walk a LOT faster

it's pretty cursed, your walk speed might not even be constant from frame to frame so it was difficult to measure

here's some approx speeds in metres per second according to my testing:
(left side: between 50% to 75% equip load, right side: <25% equip load)

each point increases jump velocity by 0.1 metres per second
(base jump velocity is 10 m/s at 0 agility)

each point increases orgone capacity on foot by 100
(base capacity is 0 orgone at 0 bioenergy)

determines orgone regeneration on foot
orgone per second formula: √bioenergy * √lack * 100

each point increases base hostility of npcs by 0.5%
(yes, this is not a mistake, it makes npcs like you a little bit less)

each point increases chance for "appropriate funds" to succeed by 0.5%
(base chance depends on hostility and how much you're asking for)

each point increases bullet bounce chance by 0.5%
(base bounce chance is 10% at 0 luck, so 5 luck = 15% bounce chance)

each point increases chance to defuse traps by 1%
(base chance is 0%)

each point reduces your level by 1
(that means it reduces level up cost)

each point increases random enemy spawn chance by 1%
(for example if an enemy has a 5% chance to spawn, then having 15 lack increases it to 20%)

each point increases the multiplier for cash that non-unique npcs spawn with by 2%
(base multiplier is 100% at 0 lack, so 15 lack = 130% multiplier)

determines orgone regeneration on foot
orgone per second formula: √lack * √bioenergy * 100


my other guides that might be useful:
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3454663866
https://psteamcommunity.yuanyoumao.com/sharedfiles/filedetails/?id=3452126278